388640900

素因数分解:

$2^2\times 5^2\times {\mathrm{113}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:501

約数の個数: 72

約数和(自身を含む): 860090784

約数和(自身を除く): 471449884

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 113, 163, 211, 226, 326, 422, 452, 565, 652, 815, 844, 1055, 1130, 1630, 2110, 2260, 2825, 3260, 4075, 4220, 5275, 5650, 8150, 10550, 11300, 16300, 18419, 21100, 23843, 34393, 36838, 47686, 68786, 73676, 92095, 95372, 119215, 137572, 171965, 184190, 238430, 343930, 368380, 460475, 476860, 596075, 687860, 859825, 920950, 1192150, 1719650, 1841900, 2384300, 3439300, 3886409, 7772818, 15545636, 19432045, 38864090, 77728180, 97160225, 194320450, 388640900]

約数ペア:

[(1, 388640900), (2, 194320450), (4, 97160225), (5, 77728180), (10, 38864090), (20, 19432045), (25, 15545636), (50, 7772818), (100, 3886409), (113, 3439300), (163, 2384300), (211, 1841900), (226, 1719650), (326, 1192150), (422, 920950), (452, 859825), (565, 687860), (652, 596075), (815, 476860), (844, 460475), (1055, 368380), (1130, 343930), (1630, 238430), (2110, 184190), (2260, 171965), (2825, 137572), (3260, 119215), (4075, 95372), (4220, 92095), (5275, 73676), (5650, 68786), (8150, 47686), (10550, 36838), (11300, 34393), (16300, 23843), (18419, 21100)]