131421780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2819}}^1$

素因数の和:2878

約数の個数: 144

約数和(自身を含む): 468074880

約数和(自身を除く): 336653100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 60, 63, 70, 74, 84, 90, 105, 111, 126, 140, 148, 180, 185, 210, 222, 252, 259, 315, 333, 370, 420, 444, 518, 555, 630, 666, 740, 777, 1036, 1110, 1260, 1295, 1332, 1554, 1665, 2220, 2331, 2590, 2819, 3108, 3330, 3885, 4662, 5180, 5638, 6660, 7770, 8457, 9324, 11276, 11655, 14095, 15540, 16914, 19733, 23310, 25371, 28190, 33828, 39466, 42285, 46620, 50742, 56380, 59199, 78932, 84570, 98665, 101484, 104303, 118398, 126855, 169140, 177597, 197330, 208606, 236796, 253710, 295995, 312909, 355194, 394660, 417212, 507420, 521515, 591990, 625818, 710388, 730121, 887985, 938727, 1043030, 1183980, 1251636, 1460242, 1564545, 1775970, 1877454, 2086060, 2190363, 2920484, 3129090, 3551940, 3650605, 3754908, 4380726, 4693635, 6258180, 6571089, 7301210, 8761452, 9387270, 10951815, 13142178, 14602420, 18774540, 21903630, 26284356, 32855445, 43807260, 65710890, 131421780]

約数ペア:

[(1, 131421780), (2, 65710890), (3, 43807260), (4, 32855445), (5, 26284356), (6, 21903630), (7, 18774540), (9, 14602420), (10, 13142178), (12, 10951815), (14, 9387270), (15, 8761452), (18, 7301210), (20, 6571089), (21, 6258180), (28, 4693635), (30, 4380726), (35, 3754908), (36, 3650605), (37, 3551940), (42, 3129090), (45, 2920484), (60, 2190363), (63, 2086060), (70, 1877454), (74, 1775970), (84, 1564545), (90, 1460242), (105, 1251636), (111, 1183980), (126, 1043030), (140, 938727), (148, 887985), (180, 730121), (185, 710388), (210, 625818), (222, 591990), (252, 521515), (259, 507420), (315, 417212), (333, 394660), (370, 355194), (420, 312909), (444, 295995), (518, 253710), (555, 236796), (630, 208606), (666, 197330), (740, 177597), (777, 169140), (1036, 126855), (1110, 118398), (1260, 104303), (1295, 101484), (1332, 98665), (1554, 84570), (1665, 78932), (2220, 59199), (2331, 56380), (2590, 50742), (2819, 46620), (3108, 42285), (3330, 39466), (3885, 33828), (4662, 28190), (5180, 25371), (5638, 23310), (6660, 19733), (7770, 16914), (8457, 15540), (9324, 14095), (11276, 11655)]