28463840

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4339}}^1$

素因数の和:4395

約数の個数: 48

約数和(自身を含む): 68901840

約数和(自身を除く): 40438000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 4339, 6560, 8678, 17356, 21695, 34712, 43390, 69424, 86780, 138848, 173560, 177899, 347120, 355798, 694240, 711596, 889495, 1423192, 1778990, 2846384, 3557980, 5692768, 7115960, 14231920, 28463840]

約数ペア:

[(1, 28463840), (2, 14231920), (4, 7115960), (5, 5692768), (8, 3557980), (10, 2846384), (16, 1778990), (20, 1423192), (32, 889495), (40, 711596), (41, 694240), (80, 355798), (82, 347120), (160, 177899), (164, 173560), (205, 138848), (328, 86780), (410, 69424), (656, 43390), (820, 34712), (1312, 21695), (1640, 17356), (3280, 8678), (4339, 6560)]