87765940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3253}}^1$

素因数の和:3352

約数の個数: 48

約数和(自身を含む): 196801920

約数和(自身を除く): 109035980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 1349, 1420, 2698, 3253, 5396, 6506, 6745, 13012, 13490, 16265, 26980, 32530, 61807, 65060, 123614, 230963, 247228, 309035, 461926, 618070, 923852, 1154815, 1236140, 2309630, 4388297, 4619260, 8776594, 17553188, 21941485, 43882970, 87765940]

約数ペア:

[(1, 87765940), (2, 43882970), (4, 21941485), (5, 17553188), (10, 8776594), (19, 4619260), (20, 4388297), (38, 2309630), (71, 1236140), (76, 1154815), (95, 923852), (142, 618070), (190, 461926), (284, 309035), (355, 247228), (380, 230963), (710, 123614), (1349, 65060), (1420, 61807), (2698, 32530), (3253, 26980), (5396, 16265), (6506, 13490), (6745, 13012)]