51412520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:546

約数の個数: 64

約数和(自身を含む): 120320640

約数和(自身を除く): 68908120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 71, 86, 142, 172, 215, 284, 344, 355, 421, 430, 568, 710, 842, 860, 1420, 1684, 1720, 2105, 2840, 3053, 3368, 4210, 6106, 8420, 12212, 15265, 16840, 18103, 24424, 29891, 30530, 36206, 59782, 61060, 72412, 90515, 119564, 122120, 144824, 149455, 181030, 239128, 298910, 362060, 597820, 724120, 1195640, 1285313, 2570626, 5141252, 6426565, 10282504, 12853130, 25706260, 51412520]

約数ペア:

[(1, 51412520), (2, 25706260), (4, 12853130), (5, 10282504), (8, 6426565), (10, 5141252), (20, 2570626), (40, 1285313), (43, 1195640), (71, 724120), (86, 597820), (142, 362060), (172, 298910), (215, 239128), (284, 181030), (344, 149455), (355, 144824), (421, 122120), (430, 119564), (568, 90515), (710, 72412), (842, 61060), (860, 59782), (1420, 36206), (1684, 30530), (1720, 29891), (2105, 24424), (2840, 18103), (3053, 16840), (3368, 15265), (4210, 12212), (6106, 8420)]