389631560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{314219}}^1$

素因数の和:314261

約数の個数: 32

約数和(自身を含む): 904953600

約数和(自身を除く): 515322040

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 314219, 628438, 1256876, 1571095, 2513752, 3142190, 6284380, 9740789, 12568760, 19481578, 38963156, 48703945, 77926312, 97407890, 194815780, 389631560]

約数ペア:

[(1, 389631560), (2, 194815780), (4, 97407890), (5, 77926312), (8, 48703945), (10, 38963156), (20, 19481578), (31, 12568760), (40, 9740789), (62, 6284380), (124, 3142190), (155, 2513752), (248, 1571095), (310, 1256876), (620, 628438), (1240, 314219)]