919779920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{370879}}^1$

素因数の和:370923

約数の個数: 40

約数和(自身を含む): 2207477760

約数和(自身を除く): 1287697840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 370879, 741758, 1483516, 1854395, 2967032, 3708790, 5934064, 7417580, 11497249, 14835160, 22994498, 29670320, 45988996, 57486245, 91977992, 114972490, 183955984, 229944980, 459889960, 919779920]

約数ペア:

[(1, 919779920), (2, 459889960), (4, 229944980), (5, 183955984), (8, 114972490), (10, 91977992), (16, 57486245), (20, 45988996), (31, 29670320), (40, 22994498), (62, 14835160), (80, 11497249), (124, 7417580), (155, 5934064), (248, 3708790), (310, 2967032), (496, 1854395), (620, 1483516), (1240, 741758), (2480, 370879)]