268779920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{108379}}^1$

素因数の和:108423

約数の個数: 40

約数和(自身を含む): 645077760

約数和(自身を除く): 376297840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 108379, 216758, 433516, 541895, 867032, 1083790, 1734064, 2167580, 3359749, 4335160, 6719498, 8670320, 13438996, 16798745, 26877992, 33597490, 53755984, 67194980, 134389960, 268779920]

約数ペア:

[(1, 268779920), (2, 134389960), (4, 67194980), (5, 53755984), (8, 33597490), (10, 26877992), (16, 16798745), (20, 13438996), (31, 8670320), (40, 6719498), (62, 4335160), (80, 3359749), (124, 2167580), (155, 1734064), (248, 1083790), (310, 867032), (496, 541895), (620, 433516), (1240, 216758), (2480, 108379)]