168804920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{136133}}^1$

素因数の和:136175

約数の個数: 32

約数和(自身を含む): 392065920

約数和(自身を除く): 223261000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 136133, 272266, 544532, 680665, 1089064, 1361330, 2722660, 4220123, 5445320, 8440246, 16880492, 21100615, 33760984, 42201230, 84402460, 168804920]

約数ペア:

[(1, 168804920), (2, 84402460), (4, 42201230), (5, 33760984), (8, 21100615), (10, 16880492), (20, 8440246), (31, 5445320), (40, 4220123), (62, 2722660), (124, 1361330), (155, 1089064), (248, 680665), (310, 544532), (620, 272266), (1240, 136133)]