14979980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 33600000

約数和(自身を除く): 18620020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 499, 790, 998, 1501, 1580, 1996, 2495, 3002, 4990, 6004, 7505, 9481, 9980, 15010, 18962, 30020, 37924, 39421, 47405, 78842, 94810, 157684, 189620, 197105, 394210, 748999, 788420, 1497998, 2995996, 3744995, 7489990, 14979980]

約数ペア:

[(1, 14979980), (2, 7489990), (4, 3744995), (5, 2995996), (10, 1497998), (19, 788420), (20, 748999), (38, 394210), (76, 197105), (79, 189620), (95, 157684), (158, 94810), (190, 78842), (316, 47405), (380, 39421), (395, 37924), (499, 30020), (790, 18962), (998, 15010), (1501, 9980), (1580, 9481), (1996, 7505), (2495, 6004), (3002, 4990)]