4091020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 9047808

約数和(自身を除く): 4956788

約数列:

[1, 2, 4, 5, 10, 20, 43, 67, 71, 86, 134, 142, 172, 215, 268, 284, 335, 355, 430, 670, 710, 860, 1340, 1420, 2881, 3053, 4757, 5762, 6106, 9514, 11524, 12212, 14405, 15265, 19028, 23785, 28810, 30530, 47570, 57620, 61060, 95140, 204551, 409102, 818204, 1022755, 2045510, 4091020]

約数ペア:

[(1, 4091020), (2, 2045510), (4, 1022755), (5, 818204), (10, 409102), (20, 204551), (43, 95140), (67, 61060), (71, 57620), (86, 47570), (134, 30530), (142, 28810), (172, 23785), (215, 19028), (268, 15265), (284, 14405), (335, 12212), (355, 11524), (430, 9514), (670, 6106), (710, 5762), (860, 4757), (1340, 3053), (1420, 2881)]