83918920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 194005440

約数和(自身を除く): 110086520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 163, 211, 244, 305, 326, 422, 488, 610, 652, 815, 844, 1055, 1220, 1304, 1630, 1688, 2110, 2440, 3260, 4220, 6520, 8440, 9943, 12871, 19886, 25742, 34393, 39772, 49715, 51484, 64355, 68786, 79544, 99430, 102968, 128710, 137572, 171965, 198860, 257420, 275144, 343930, 397720, 514840, 687860, 1375720, 2097973, 4195946, 8391892, 10489865, 16783784, 20979730, 41959460, 83918920]

約数ペア:

[(1, 83918920), (2, 41959460), (4, 20979730), (5, 16783784), (8, 10489865), (10, 8391892), (20, 4195946), (40, 2097973), (61, 1375720), (122, 687860), (163, 514840), (211, 397720), (244, 343930), (305, 275144), (326, 257420), (422, 198860), (488, 171965), (610, 137572), (652, 128710), (815, 102968), (844, 99430), (1055, 79544), (1220, 68786), (1304, 64355), (1630, 51484), (1688, 49715), (2110, 39772), (2440, 34393), (3260, 25742), (4220, 19886), (6520, 12871), (8440, 9943)]