169172720

素因数分解:

$2^4\times 5^1\times {\mathrm{641}}^1\times {\mathrm{3299}}^1$

素因数の和:3953

約数の個数: 40

約数和(自身を含む): 394059600

約数和(自身を除く): 224886880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641, 1282, 2564, 3205, 3299, 5128, 6410, 6598, 10256, 12820, 13196, 16495, 25640, 26392, 32990, 51280, 52784, 65980, 131960, 263920, 2114659, 4229318, 8458636, 10573295, 16917272, 21146590, 33834544, 42293180, 84586360, 169172720]

約数ペア:

[(1, 169172720), (2, 84586360), (4, 42293180), (5, 33834544), (8, 21146590), (10, 16917272), (16, 10573295), (20, 8458636), (40, 4229318), (80, 2114659), (641, 263920), (1282, 131960), (2564, 65980), (3205, 52784), (3299, 51280), (5128, 32990), (6410, 26392), (6598, 25640), (10256, 16495), (12820, 13196)]