24981380

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 54001920

約数和(自身を除く): 29020540

約数列:

[1, 2, 4, 5, 10, 20, 79, 97, 158, 163, 194, 316, 326, 388, 395, 485, 652, 790, 815, 970, 1580, 1630, 1940, 3260, 7663, 12877, 15326, 15811, 25754, 30652, 31622, 38315, 51508, 63244, 64385, 76630, 79055, 128770, 153260, 158110, 257540, 316220, 1249069, 2498138, 4996276, 6245345, 12490690, 24981380]

約数ペア:

[(1, 24981380), (2, 12490690), (4, 6245345), (5, 4996276), (10, 2498138), (20, 1249069), (79, 316220), (97, 257540), (158, 158110), (163, 153260), (194, 128770), (316, 79055), (326, 76630), (388, 64385), (395, 63244), (485, 51508), (652, 38315), (790, 31622), (815, 30652), (970, 25754), (1580, 15811), (1630, 15326), (1940, 12877), (3260, 7663)]