39900100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:317

約数の個数: 72

約数和(自身を含む): 91271936

約数和(自身を除く): 51371836

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 61, 62, 100, 122, 124, 155, 211, 244, 305, 310, 422, 610, 620, 775, 844, 1055, 1220, 1525, 1550, 1891, 2110, 3050, 3100, 3782, 4220, 5275, 6100, 6541, 7564, 9455, 10550, 12871, 13082, 18910, 21100, 25742, 26164, 32705, 37820, 47275, 51484, 64355, 65410, 94550, 128710, 130820, 163525, 189100, 257420, 321775, 327050, 399001, 643550, 654100, 798002, 1287100, 1596004, 1995005, 3990010, 7980020, 9975025, 19950050, 39900100]

約数ペア:

[(1, 39900100), (2, 19950050), (4, 9975025), (5, 7980020), (10, 3990010), (20, 1995005), (25, 1596004), (31, 1287100), (50, 798002), (61, 654100), (62, 643550), (100, 399001), (122, 327050), (124, 321775), (155, 257420), (211, 189100), (244, 163525), (305, 130820), (310, 128710), (422, 94550), (610, 65410), (620, 64355), (775, 51484), (844, 47275), (1055, 37820), (1220, 32705), (1525, 26164), (1550, 25742), (1891, 21100), (2110, 18910), (3050, 13082), (3100, 12871), (3782, 10550), (4220, 9455), (5275, 7564), (6100, 6541)]