392138840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{316241}}^1$

素因数の和:316283

約数の個数: 32

約数和(自身を含む): 910776960

約数和(自身を除く): 518638120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 316241, 632482, 1264964, 1581205, 2529928, 3162410, 6324820, 9803471, 12649640, 19606942, 39213884, 49017355, 78427768, 98034710, 196069420, 392138840]

約数ペア:

[(1, 392138840), (2, 196069420), (4, 98034710), (5, 78427768), (8, 49017355), (10, 39213884), (20, 19606942), (31, 12649640), (40, 9803471), (62, 6324820), (124, 3162410), (155, 2529928), (248, 1581205), (310, 1264964), (620, 632482), (1240, 316241)]