20071520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17921}}^1$

素因数の和:17943

約数の個数: 48

約数和(自身を含む): 54196128

約数和(自身を除く): 34124608

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, 17921, 35842, 71684, 89605, 125447, 143368, 179210, 250894, 286736, 358420, 501788, 573472, 627235, 716840, 1003576, 1254470, 1433680, 2007152, 2508940, 2867360, 4014304, 5017880, 10035760, 20071520]

約数ペア:

[(1, 20071520), (2, 10035760), (4, 5017880), (5, 4014304), (7, 2867360), (8, 2508940), (10, 2007152), (14, 1433680), (16, 1254470), (20, 1003576), (28, 716840), (32, 627235), (35, 573472), (40, 501788), (56, 358420), (70, 286736), (80, 250894), (112, 179210), (140, 143368), (160, 125447), (224, 89605), (280, 71684), (560, 35842), (1120, 17921)]