69940840

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{3947}}^1$

素因数の和:4401

約数の個数: 32

約数和(自身を含む): 157762080

約数和(自身を除く): 87821240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1772, 2215, 3544, 3947, 4430, 7894, 8860, 15788, 17720, 19735, 31576, 39470, 78940, 157880, 1748521, 3497042, 6994084, 8742605, 13988168, 17485210, 34970420, 69940840]

約数ペア:

[(1, 69940840), (2, 34970420), (4, 17485210), (5, 13988168), (8, 8742605), (10, 6994084), (20, 3497042), (40, 1748521), (443, 157880), (886, 78940), (1772, 39470), (2215, 31576), (3544, 19735), (3947, 17720), (4430, 15788), (7894, 8860)]