28161260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{563}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 61683552

約数和(自身を除く): 33522292

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 305, 410, 563, 610, 820, 1126, 1220, 2252, 2501, 2815, 5002, 5630, 10004, 11260, 12505, 23083, 25010, 34343, 46166, 50020, 68686, 92332, 115415, 137372, 171715, 230830, 343430, 461660, 686860, 1408063, 2816126, 5632252, 7040315, 14080630, 28161260]

約数ペア:

[(1, 28161260), (2, 14080630), (4, 7040315), (5, 5632252), (10, 2816126), (20, 1408063), (41, 686860), (61, 461660), (82, 343430), (122, 230830), (164, 171715), (205, 137372), (244, 115415), (305, 92332), (410, 68686), (563, 50020), (610, 46166), (820, 34343), (1126, 25010), (1220, 23083), (2252, 12505), (2501, 11260), (2815, 10004), (5002, 5630)]