210400760

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:576

約数の個数: 64

約数和(自身を含む): 482418720

約数和(自身を除く): 272017960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 211, 257, 388, 422, 485, 514, 776, 844, 970, 1028, 1055, 1285, 1688, 1940, 2056, 2110, 2570, 3880, 4220, 5140, 8440, 10280, 20467, 24929, 40934, 49858, 54227, 81868, 99716, 102335, 108454, 124645, 163736, 199432, 204670, 216908, 249290, 271135, 409340, 433816, 498580, 542270, 818680, 997160, 1084540, 2169080, 5260019, 10520038, 21040076, 26300095, 42080152, 52600190, 105200380, 210400760]

約数ペア:

[(1, 210400760), (2, 105200380), (4, 52600190), (5, 42080152), (8, 26300095), (10, 21040076), (20, 10520038), (40, 5260019), (97, 2169080), (194, 1084540), (211, 997160), (257, 818680), (388, 542270), (422, 498580), (485, 433816), (514, 409340), (776, 271135), (844, 249290), (970, 216908), (1028, 204670), (1055, 199432), (1285, 163736), (1688, 124645), (1940, 108454), (2056, 102335), (2110, 99716), (2570, 81868), (3880, 54227), (4220, 49858), (5140, 40934), (8440, 24929), (10280, 20467)]