61819240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{220783}}^1$

素因数の和:220801

約数の個数: 32

約数和(自身を含む): 158964480

約数和(自身を除く): 97145240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 220783, 441566, 883132, 1103915, 1545481, 1766264, 2207830, 3090962, 4415660, 6181924, 7727405, 8831320, 12363848, 15454810, 30909620, 61819240]

約数ペア:

[(1, 61819240), (2, 30909620), (4, 15454810), (5, 12363848), (7, 8831320), (8, 7727405), (10, 6181924), (14, 4415660), (20, 3090962), (28, 2207830), (35, 1766264), (40, 1545481), (56, 1103915), (70, 883132), (140, 441566), (280, 220783)]