79919680

素因数分解:

$2^6\times 5^1\times {\mathrm{249749}}^1$

素因数の和:249766

約数の個数: 28

約数和(自身を含む): 190309500

約数和(自身を除く): 110389820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 249749, 499498, 998996, 1248745, 1997992, 2497490, 3995984, 4994980, 7991968, 9989960, 15983936, 19979920, 39959840, 79919680]

約数ペア:

[(1, 79919680), (2, 39959840), (4, 19979920), (5, 15983936), (8, 9989960), (10, 7991968), (16, 4994980), (20, 3995984), (32, 2497490), (40, 1997992), (64, 1248745), (80, 998996), (160, 499498), (320, 249749)]