858922420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{6703}}^1$

素因数の和:6904

約数の個数: 48

約数和(自身を含む): 1858348800

約数和(自身を除く): 999426380

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 149, 172, 215, 298, 430, 596, 745, 860, 1490, 2980, 6407, 6703, 12814, 13406, 25628, 26812, 32035, 33515, 64070, 67030, 128140, 134060, 288229, 576458, 998747, 1152916, 1441145, 1997494, 2882290, 3994988, 4993735, 5764580, 9987470, 19974940, 42946121, 85892242, 171784484, 214730605, 429461210, 858922420]

約数ペア:

[(1, 858922420), (2, 429461210), (4, 214730605), (5, 171784484), (10, 85892242), (20, 42946121), (43, 19974940), (86, 9987470), (149, 5764580), (172, 4993735), (215, 3994988), (298, 2882290), (430, 1997494), (596, 1441145), (745, 1152916), (860, 998747), (1490, 576458), (2980, 288229), (6407, 134060), (6703, 128140), (12814, 67030), (13406, 64070), (25628, 33515), (26812, 32035)]