392004920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{316133}}^1$

素因数の和:316175

約数の個数: 32

約数和(自身を含む): 910465920

約数和(自身を除く): 518461000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 316133, 632266, 1264532, 1580665, 2529064, 3161330, 6322660, 9800123, 12645320, 19600246, 39200492, 49000615, 78400984, 98001230, 196002460, 392004920]

約数ペア:

[(1, 392004920), (2, 196002460), (4, 98001230), (5, 78400984), (8, 49000615), (10, 39200492), (20, 19600246), (31, 12645320), (40, 9800123), (62, 6322660), (124, 3161330), (155, 2529064), (248, 1580665), (310, 1264532), (620, 632266), (1240, 316133)]