20753460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1$

素因数の和:223

約数の個数: 216

約数和(自身を含む): 79298856

約数和(自身を除く): 58545396

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 49, 52, 60, 63, 65, 70, 78, 84, 90, 91, 98, 105, 117, 126, 130, 140, 147, 156, 180, 181, 182, 195, 196, 210, 234, 245, 252, 260, 273, 294, 315, 362, 364, 390, 420, 441, 455, 468, 490, 543, 546, 585, 588, 630, 637, 724, 735, 780, 819, 882, 905, 910, 980, 1086, 1092, 1170, 1260, 1267, 1274, 1365, 1470, 1629, 1638, 1764, 1810, 1820, 1911, 2172, 2205, 2340, 2353, 2534, 2548, 2715, 2730, 2940, 3185, 3258, 3276, 3620, 3801, 3822, 4095, 4410, 4706, 5068, 5430, 5460, 5733, 6335, 6370, 6516, 7059, 7602, 7644, 8145, 8190, 8820, 8869, 9412, 9555, 10860, 11403, 11466, 11765, 12670, 12740, 14118, 15204, 16290, 16380, 16471, 17738, 19005, 19110, 21177, 22806, 22932, 23530, 25340, 26607, 28236, 28665, 32580, 32942, 35295, 35476, 38010, 38220, 42354, 44345, 45612, 47060, 49413, 53214, 57015, 57330, 65884, 70590, 76020, 79821, 82355, 84708, 88690, 98826, 105885, 106428, 114030, 114660, 115297, 133035, 141180, 148239, 159642, 164710, 177380, 197652, 211770, 228060, 230594, 247065, 266070, 296478, 319284, 329420, 345891, 399105, 423540, 461188, 494130, 532140, 576485, 592956, 691782, 741195, 798210, 988260, 1037673, 1152970, 1383564, 1482390, 1596420, 1729455, 2075346, 2305940, 2964780, 3458910, 4150692, 5188365, 6917820, 10376730, 20753460]

約数ペア:

[(1, 20753460), (2, 10376730), (3, 6917820), (4, 5188365), (5, 4150692), (6, 3458910), (7, 2964780), (9, 2305940), (10, 2075346), (12, 1729455), (13, 1596420), (14, 1482390), (15, 1383564), (18, 1152970), (20, 1037673), (21, 988260), (26, 798210), (28, 741195), (30, 691782), (35, 592956), (36, 576485), (39, 532140), (42, 494130), (45, 461188), (49, 423540), (52, 399105), (60, 345891), (63, 329420), (65, 319284), (70, 296478), (78, 266070), (84, 247065), (90, 230594), (91, 228060), (98, 211770), (105, 197652), (117, 177380), (126, 164710), (130, 159642), (140, 148239), (147, 141180), (156, 133035), (180, 115297), (181, 114660), (182, 114030), (195, 106428), (196, 105885), (210, 98826), (234, 88690), (245, 84708), (252, 82355), (260, 79821), (273, 76020), (294, 70590), (315, 65884), (362, 57330), (364, 57015), (390, 53214), (420, 49413), (441, 47060), (455, 45612), (468, 44345), (490, 42354), (543, 38220), (546, 38010), (585, 35476), (588, 35295), (630, 32942), (637, 32580), (724, 28665), (735, 28236), (780, 26607), (819, 25340), (882, 23530), (905, 22932), (910, 22806), (980, 21177), (1086, 19110), (1092, 19005), (1170, 17738), (1260, 16471), (1267, 16380), (1274, 16290), (1365, 15204), (1470, 14118), (1629, 12740), (1638, 12670), (1764, 11765), (1810, 11466), (1820, 11403), (1911, 10860), (2172, 9555), (2205, 9412), (2340, 8869), (2353, 8820), (2534, 8190), (2548, 8145), (2715, 7644), (2730, 7602), (2940, 7059), (3185, 6516), (3258, 6370), (3276, 6335), (3620, 5733), (3801, 5460), (3822, 5430), (4095, 5068), (4410, 4706)]