72940420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{263}}^1\times {\mathrm{283}}^1$

素因数の和:569

約数の個数: 72

約数和(自身を含む): 179492544

約数和(自身を除く): 106552124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 263, 283, 490, 526, 566, 980, 1052, 1132, 1315, 1415, 1841, 1981, 2630, 2830, 3682, 3962, 5260, 5660, 7364, 7924, 9205, 9905, 12887, 13867, 18410, 19810, 25774, 27734, 36820, 39620, 51548, 55468, 64435, 69335, 74429, 128870, 138670, 148858, 257740, 277340, 297716, 372145, 521003, 744290, 1042006, 1488580, 2084012, 2605015, 3647021, 5210030, 7294042, 10420060, 14588084, 18235105, 36470210, 72940420]

約数ペア:

[(1, 72940420), (2, 36470210), (4, 18235105), (5, 14588084), (7, 10420060), (10, 7294042), (14, 5210030), (20, 3647021), (28, 2605015), (35, 2084012), (49, 1488580), (70, 1042006), (98, 744290), (140, 521003), (196, 372145), (245, 297716), (263, 277340), (283, 257740), (490, 148858), (526, 138670), (566, 128870), (980, 74429), (1052, 69335), (1132, 64435), (1315, 55468), (1415, 51548), (1841, 39620), (1981, 36820), (2630, 27734), (2830, 25774), (3682, 19810), (3962, 18410), (5260, 13867), (5660, 12887), (7364, 9905), (7924, 9205)]