90103240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{54941}}^1$

素因数の和:54993

約数の個数: 32

約数和(自身を含む): 207680760

約数和(自身を除く): 117577520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 54941, 109882, 219764, 274705, 439528, 549410, 1098820, 2197640, 2252581, 4505162, 9010324, 11262905, 18020648, 22525810, 45051620, 90103240]

約数ペア:

[(1, 90103240), (2, 45051620), (4, 22525810), (5, 18020648), (8, 11262905), (10, 9010324), (20, 4505162), (40, 2252581), (41, 2197640), (82, 1098820), (164, 549410), (205, 439528), (328, 274705), (410, 219764), (820, 109882), (1640, 54941)]