13811120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5569}}^1$

素因数の和:5613

約数の個数: 40

約数和(自身を含む): 33152640

約数和(自身を除く): 19341520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 5569, 11138, 22276, 27845, 44552, 55690, 89104, 111380, 172639, 222760, 345278, 445520, 690556, 863195, 1381112, 1726390, 2762224, 3452780, 6905560, 13811120]

約数ペア:

[(1, 13811120), (2, 6905560), (4, 3452780), (5, 2762224), (8, 1726390), (10, 1381112), (16, 863195), (20, 690556), (31, 445520), (40, 345278), (62, 222760), (80, 172639), (124, 111380), (155, 89104), (248, 55690), (310, 44552), (496, 27845), (620, 22276), (1240, 11138), (2480, 5569)]