61809160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{220747}}^1$

素因数の和:220765

約数の個数: 32

約数和(自身を含む): 158938560

約数和(自身を除く): 97129400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 220747, 441494, 882988, 1103735, 1545229, 1765976, 2207470, 3090458, 4414940, 6180916, 7726145, 8829880, 12361832, 15452290, 30904580, 61809160]

約数ペア:

[(1, 61809160), (2, 30904580), (4, 15452290), (5, 12361832), (7, 8829880), (8, 7726145), (10, 6180916), (14, 4414940), (20, 3090458), (28, 2207470), (35, 1765976), (40, 1545229), (56, 1103735), (70, 882988), (140, 441494), (280, 220747)]