8408440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6781}}^1$

素因数の和:6823

約数の個数: 32

約数和(自身を含む): 19532160

約数和(自身を除く): 11123720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 6781, 13562, 27124, 33905, 54248, 67810, 135620, 210211, 271240, 420422, 840844, 1051055, 1681688, 2102110, 4204220, 8408440]

約数ペア:

[(1, 8408440), (2, 4204220), (4, 2102110), (5, 1681688), (8, 1051055), (10, 840844), (20, 420422), (31, 271240), (40, 210211), (62, 135620), (124, 67810), (155, 54248), (248, 33905), (310, 27124), (620, 13562), (1240, 6781)]