78340120

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{4421}}^1$

素因数の和:4875

約数の個数: 32

約数和(自身を含む): 176703120

約数和(自身を除く): 98363000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1772, 2215, 3544, 4421, 4430, 8842, 8860, 17684, 17720, 22105, 35368, 44210, 88420, 176840, 1958503, 3917006, 7834012, 9792515, 15668024, 19585030, 39170060, 78340120]

約数ペア:

[(1, 78340120), (2, 39170060), (4, 19585030), (5, 15668024), (8, 9792515), (10, 7834012), (20, 3917006), (40, 1958503), (443, 176840), (886, 88420), (1772, 44210), (2215, 35368), (3544, 22105), (4421, 17720), (4430, 17684), (8842, 8860)]