281349180

素因数分解:

$2^2\times 3^3\times 5^1\times 7^5\times {\mathrm{31}}^1$

素因数の和:84

約数の個数: 288

約数和(自身を含む): 1054126080

約数和(自身を除く): 772776900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 31, 35, 36, 42, 45, 49, 54, 60, 62, 63, 70, 84, 90, 93, 98, 105, 108, 124, 126, 135, 140, 147, 155, 180, 186, 189, 196, 210, 217, 245, 252, 270, 279, 294, 310, 315, 343, 372, 378, 420, 434, 441, 465, 490, 540, 558, 588, 620, 630, 651, 686, 735, 756, 837, 868, 882, 930, 945, 980, 1029, 1085, 1116, 1260, 1302, 1323, 1372, 1395, 1470, 1519, 1674, 1715, 1764, 1860, 1890, 1953, 2058, 2170, 2205, 2401, 2604, 2646, 2790, 2940, 3038, 3087, 3255, 3348, 3430, 3780, 3906, 4116, 4185, 4340, 4410, 4557, 4802, 5145, 5292, 5580, 5859, 6076, 6174, 6510, 6615, 6860, 7203, 7595, 7812, 8370, 8820, 9114, 9261, 9604, 9765, 10290, 10633, 11718, 12005, 12348, 13020, 13230, 13671, 14406, 15190, 15435, 16740, 16807, 18228, 18522, 19530, 20580, 21266, 21609, 22785, 23436, 24010, 26460, 27342, 28812, 29295, 30380, 30870, 31899, 33614, 36015, 37044, 39060, 41013, 42532, 43218, 45570, 46305, 48020, 50421, 53165, 54684, 58590, 61740, 63798, 64827, 67228, 68355, 72030, 74431, 82026, 84035, 86436, 91140, 92610, 95697, 100842, 106330, 108045, 117180, 127596, 129654, 136710, 144060, 148862, 151263, 159495, 164052, 168070, 185220, 191394, 201684, 205065, 212660, 216090, 223293, 252105, 259308, 273420, 287091, 297724, 302526, 318990, 324135, 336140, 372155, 382788, 410130, 432180, 446586, 453789, 478485, 504210, 521017, 574182, 605052, 637980, 648270, 669879, 744310, 756315, 820260, 893172, 907578, 956970, 1008420, 1042034, 1116465, 1148364, 1296540, 1339758, 1435455, 1488620, 1512630, 1563051, 1815156, 1913940, 2009637, 2084068, 2232930, 2268945, 2605085, 2679516, 2870910, 3025260, 3126102, 3349395, 4019274, 4465860, 4537890, 4689153, 5210170, 5741820, 6252204, 6698790, 7815255, 8038548, 9075780, 9378306, 10048185, 10420340, 13397580, 14067459, 15630510, 18756612, 20096370, 23445765, 28134918, 31261020, 40192740, 46891530, 56269836, 70337295, 93783060, 140674590, 281349180]

約数ペア:

[(1, 281349180), (2, 140674590), (3, 93783060), (4, 70337295), (5, 56269836), (6, 46891530), (7, 40192740), (9, 31261020), (10, 28134918), (12, 23445765), (14, 20096370), (15, 18756612), (18, 15630510), (20, 14067459), (21, 13397580), (27, 10420340), (28, 10048185), (30, 9378306), (31, 9075780), (35, 8038548), (36, 7815255), (42, 6698790), (45, 6252204), (49, 5741820), (54, 5210170), (60, 4689153), (62, 4537890), (63, 4465860), (70, 4019274), (84, 3349395), (90, 3126102), (93, 3025260), (98, 2870910), (105, 2679516), (108, 2605085), (124, 2268945), (126, 2232930), (135, 2084068), (140, 2009637), (147, 1913940), (155, 1815156), (180, 1563051), (186, 1512630), (189, 1488620), (196, 1435455), (210, 1339758), (217, 1296540), (245, 1148364), (252, 1116465), (270, 1042034), (279, 1008420), (294, 956970), (310, 907578), (315, 893172), (343, 820260), (372, 756315), (378, 744310), (420, 669879), (434, 648270), (441, 637980), (465, 605052), (490, 574182), (540, 521017), (558, 504210), (588, 478485), (620, 453789), (630, 446586), (651, 432180), (686, 410130), (735, 382788), (756, 372155), (837, 336140), (868, 324135), (882, 318990), (930, 302526), (945, 297724), (980, 287091), (1029, 273420), (1085, 259308), (1116, 252105), (1260, 223293), (1302, 216090), (1323, 212660), (1372, 205065), (1395, 201684), (1470, 191394), (1519, 185220), (1674, 168070), (1715, 164052), (1764, 159495), (1860, 151263), (1890, 148862), (1953, 144060), (2058, 136710), (2170, 129654), (2205, 127596), (2401, 117180), (2604, 108045), (2646, 106330), (2790, 100842), (2940, 95697), (3038, 92610), (3087, 91140), (3255, 86436), (3348, 84035), (3430, 82026), (3780, 74431), (3906, 72030), (4116, 68355), (4185, 67228), (4340, 64827), (4410, 63798), (4557, 61740), (4802, 58590), (5145, 54684), (5292, 53165), (5580, 50421), (5859, 48020), (6076, 46305), (6174, 45570), (6510, 43218), (6615, 42532), (6860, 41013), (7203, 39060), (7595, 37044), (7812, 36015), (8370, 33614), (8820, 31899), (9114, 30870), (9261, 30380), (9604, 29295), (9765, 28812), (10290, 27342), (10633, 26460), (11718, 24010), (12005, 23436), (12348, 22785), (13020, 21609), (13230, 21266), (13671, 20580), (14406, 19530), (15190, 18522), (15435, 18228), (16740, 16807)]