72498820

素因数分解:

$2^2\times 5^1\times {\mathrm{1619}}^1\times {\mathrm{2239}}^1$

素因数の和:3867

約数の個数: 24

約数和(自身を含む): 152409600

約数和(自身を除く): 79910780

約数列:

[1, 2, 4, 5, 10, 20, 1619, 2239, 3238, 4478, 6476, 8095, 8956, 11195, 16190, 22390, 32380, 44780, 3624941, 7249882, 14499764, 18124705, 36249410, 72498820]

約数ペア:

[(1, 72498820), (2, 36249410), (4, 18124705), (5, 14499764), (10, 7249882), (20, 3624941), (1619, 44780), (2239, 32380), (3238, 22390), (4478, 16190), (6476, 11195), (8095, 8956)]