81273280

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2099}}^1$

素因数の和:2138

約数の個数: 84

約数和(自身を含む): 212826600

約数和(自身を除く): 131553320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 160, 176, 220, 242, 320, 352, 440, 484, 605, 704, 880, 968, 1210, 1760, 1936, 2099, 2420, 3520, 3872, 4198, 4840, 7744, 8396, 9680, 10495, 16792, 19360, 20990, 23089, 33584, 38720, 41980, 46178, 67168, 83960, 92356, 115445, 134336, 167920, 184712, 230890, 253979, 335840, 369424, 461780, 507958, 671680, 738848, 923560, 1015916, 1269895, 1477696, 1847120, 2031832, 2539790, 3694240, 4063664, 5079580, 7388480, 8127328, 10159160, 16254656, 20318320, 40636640, 81273280]

約数ペア:

[(1, 81273280), (2, 40636640), (4, 20318320), (5, 16254656), (8, 10159160), (10, 8127328), (11, 7388480), (16, 5079580), (20, 4063664), (22, 3694240), (32, 2539790), (40, 2031832), (44, 1847120), (55, 1477696), (64, 1269895), (80, 1015916), (88, 923560), (110, 738848), (121, 671680), (160, 507958), (176, 461780), (220, 369424), (242, 335840), (320, 253979), (352, 230890), (440, 184712), (484, 167920), (605, 134336), (704, 115445), (880, 92356), (968, 83960), (1210, 67168), (1760, 46178), (1936, 41980), (2099, 38720), (2420, 33584), (3520, 23089), (3872, 20990), (4198, 19360), (4840, 16792), (7744, 10495), (8396, 9680)]