81181680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{937}}^1$

素因数の和:991

約数の個数: 120

約数和(自身を含む): 265889232

約数和(自身を除く): 184707552

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 361, 380, 456, 570, 722, 760, 912, 937, 1083, 1140, 1444, 1520, 1805, 1874, 2166, 2280, 2811, 2888, 3610, 3748, 4332, 4560, 4685, 5415, 5622, 5776, 7220, 7496, 8664, 9370, 10830, 11244, 14055, 14440, 14992, 17328, 17803, 18740, 21660, 22488, 28110, 28880, 35606, 37480, 43320, 44976, 53409, 56220, 71212, 74960, 86640, 89015, 106818, 112440, 142424, 178030, 213636, 224880, 267045, 284848, 338257, 356060, 427272, 534090, 676514, 712120, 854544, 1014771, 1068180, 1353028, 1424240, 1691285, 2029542, 2136360, 2706056, 3382570, 4059084, 4272720, 5073855, 5412112, 6765140, 8118168, 10147710, 13530280, 16236336, 20295420, 27060560, 40590840, 81181680]

約数ペア:

[(1, 81181680), (2, 40590840), (3, 27060560), (4, 20295420), (5, 16236336), (6, 13530280), (8, 10147710), (10, 8118168), (12, 6765140), (15, 5412112), (16, 5073855), (19, 4272720), (20, 4059084), (24, 3382570), (30, 2706056), (38, 2136360), (40, 2029542), (48, 1691285), (57, 1424240), (60, 1353028), (76, 1068180), (80, 1014771), (95, 854544), (114, 712120), (120, 676514), (152, 534090), (190, 427272), (228, 356060), (240, 338257), (285, 284848), (304, 267045), (361, 224880), (380, 213636), (456, 178030), (570, 142424), (722, 112440), (760, 106818), (912, 89015), (937, 86640), (1083, 74960), (1140, 71212), (1444, 56220), (1520, 53409), (1805, 44976), (1874, 43320), (2166, 37480), (2280, 35606), (2811, 28880), (2888, 28110), (3610, 22488), (3748, 21660), (4332, 18740), (4560, 17803), (4685, 17328), (5415, 14992), (5622, 14440), (5776, 14055), (7220, 11244), (7496, 10830), (8664, 9370)]