858705830

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{220747}}^1$

素因数の和:221143

約数の個数: 16

約数和(自身を含む): 1549650960

約数和(自身を除く): 690945130

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 220747, 441494, 1103735, 2207470, 85870583, 171741166, 429352915, 858705830]

約数ペア:

[(1, 858705830), (2, 429352915), (5, 171741166), (10, 85870583), (389, 2207470), (778, 1103735), (1945, 441494), (3890, 220747)]