19038640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13999}}^1$

素因数の和:14029

約数の個数: 40

約数和(自身を含む): 46872000

約数和(自身を除く): 27833360

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 13999, 27998, 55996, 69995, 111992, 139990, 223984, 237983, 279980, 475966, 559960, 951932, 1119920, 1189915, 1903864, 2379830, 3807728, 4759660, 9519320, 19038640]

約数ペア:

[(1, 19038640), (2, 9519320), (4, 4759660), (5, 3807728), (8, 2379830), (10, 1903864), (16, 1189915), (17, 1119920), (20, 951932), (34, 559960), (40, 475966), (68, 279980), (80, 237983), (85, 223984), (136, 139990), (170, 111992), (272, 69995), (340, 55996), (680, 27998), (1360, 13999)]