278967780

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{811}}^1$

素因数の和:856

約数の個数: 288

約数和(自身を含む): 1088599680

約数和(自身を除く): 809631900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 49, 52, 54, 60, 63, 65, 70, 78, 84, 90, 91, 98, 105, 108, 117, 126, 130, 135, 140, 147, 156, 180, 182, 189, 195, 196, 210, 234, 245, 252, 260, 270, 273, 294, 315, 351, 364, 378, 390, 420, 441, 455, 468, 490, 540, 546, 585, 588, 630, 637, 702, 735, 756, 780, 811, 819, 882, 910, 945, 980, 1092, 1170, 1260, 1274, 1323, 1365, 1404, 1470, 1622, 1638, 1755, 1764, 1820, 1890, 1911, 2205, 2340, 2433, 2457, 2548, 2646, 2730, 2940, 3185, 3244, 3276, 3510, 3780, 3822, 4055, 4095, 4410, 4866, 4914, 5292, 5460, 5677, 5733, 6370, 6615, 7020, 7299, 7644, 8110, 8190, 8820, 9555, 9732, 9828, 10543, 11354, 11466, 12165, 12285, 12740, 13230, 14598, 16220, 16380, 17031, 17199, 19110, 21086, 21897, 22708, 22932, 24330, 24570, 26460, 28385, 28665, 29196, 31629, 34062, 34398, 36495, 38220, 39739, 42172, 43794, 48660, 49140, 51093, 52715, 56770, 57330, 63258, 68124, 68796, 72990, 73801, 79478, 85155, 85995, 87588, 94887, 102186, 105430, 109485, 113540, 114660, 119217, 126516, 145980, 147602, 153279, 158145, 158956, 170310, 171990, 189774, 198695, 204372, 210860, 218970, 221403, 238434, 255465, 284661, 295204, 306558, 316290, 340620, 343980, 357651, 369005, 379548, 397390, 437940, 442806, 474435, 476868, 510930, 516607, 569322, 596085, 613116, 632580, 664209, 715302, 738010, 766395, 794780, 885612, 948870, 1021860, 1033214, 1072953, 1107015, 1138644, 1192170, 1328418, 1423305, 1430604, 1476020, 1532790, 1549821, 1788255, 1897740, 1992627, 2066428, 2145906, 2214030, 2384340, 2583035, 2656836, 2846610, 3065580, 3099642, 3321045, 3576510, 3985254, 4291812, 4428060, 4649463, 5166070, 5364765, 5693220, 6199284, 6642090, 7153020, 7749105, 7970508, 9298926, 9963135, 10332140, 10729530, 13284180, 13948389, 15498210, 18597852, 19926270, 21459060, 23247315, 27896778, 30996420, 39852540, 46494630, 55793556, 69741945, 92989260, 139483890, 278967780]

約数ペア:

[(1, 278967780), (2, 139483890), (3, 92989260), (4, 69741945), (5, 55793556), (6, 46494630), (7, 39852540), (9, 30996420), (10, 27896778), (12, 23247315), (13, 21459060), (14, 19926270), (15, 18597852), (18, 15498210), (20, 13948389), (21, 13284180), (26, 10729530), (27, 10332140), (28, 9963135), (30, 9298926), (35, 7970508), (36, 7749105), (39, 7153020), (42, 6642090), (45, 6199284), (49, 5693220), (52, 5364765), (54, 5166070), (60, 4649463), (63, 4428060), (65, 4291812), (70, 3985254), (78, 3576510), (84, 3321045), (90, 3099642), (91, 3065580), (98, 2846610), (105, 2656836), (108, 2583035), (117, 2384340), (126, 2214030), (130, 2145906), (135, 2066428), (140, 1992627), (147, 1897740), (156, 1788255), (180, 1549821), (182, 1532790), (189, 1476020), (195, 1430604), (196, 1423305), (210, 1328418), (234, 1192170), (245, 1138644), (252, 1107015), (260, 1072953), (270, 1033214), (273, 1021860), (294, 948870), (315, 885612), (351, 794780), (364, 766395), (378, 738010), (390, 715302), (420, 664209), (441, 632580), (455, 613116), (468, 596085), (490, 569322), (540, 516607), (546, 510930), (585, 476868), (588, 474435), (630, 442806), (637, 437940), (702, 397390), (735, 379548), (756, 369005), (780, 357651), (811, 343980), (819, 340620), (882, 316290), (910, 306558), (945, 295204), (980, 284661), (1092, 255465), (1170, 238434), (1260, 221403), (1274, 218970), (1323, 210860), (1365, 204372), (1404, 198695), (1470, 189774), (1622, 171990), (1638, 170310), (1755, 158956), (1764, 158145), (1820, 153279), (1890, 147602), (1911, 145980), (2205, 126516), (2340, 119217), (2433, 114660), (2457, 113540), (2548, 109485), (2646, 105430), (2730, 102186), (2940, 94887), (3185, 87588), (3244, 85995), (3276, 85155), (3510, 79478), (3780, 73801), (3822, 72990), (4055, 68796), (4095, 68124), (4410, 63258), (4866, 57330), (4914, 56770), (5292, 52715), (5460, 51093), (5677, 49140), (5733, 48660), (6370, 43794), (6615, 42172), (7020, 39739), (7299, 38220), (7644, 36495), (8110, 34398), (8190, 34062), (8820, 31629), (9555, 29196), (9732, 28665), (9828, 28385), (10543, 26460), (11354, 24570), (11466, 24330), (12165, 22932), (12285, 22708), (12740, 21897), (13230, 21086), (14598, 19110), (16220, 17199), (16380, 17031)]