279718880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{249749}}^1$

素因数の和:249771

約数の個数: 48

約数和(自身を含む): 755244000

約数和(自身を除く): 475525120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 249749, 499498, 998996, 1248745, 1748243, 1997992, 2497490, 3496486, 3995984, 4994980, 6992972, 7991968, 8741215, 9989960, 13985944, 17482430, 19979920, 27971888, 34964860, 39959840, 55943776, 69929720, 139859440, 279718880]

約数ペア:

[(1, 279718880), (2, 139859440), (4, 69929720), (5, 55943776), (7, 39959840), (8, 34964860), (10, 27971888), (14, 19979920), (16, 17482430), (20, 13985944), (28, 9989960), (32, 8741215), (35, 7991968), (40, 6992972), (56, 4994980), (70, 3995984), (80, 3496486), (112, 2497490), (140, 1997992), (160, 1748243), (224, 1248745), (280, 998996), (560, 499498), (1120, 249749)]