13485880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5527}}^1$

素因数の和:5599

約数の個数: 32

約数和(自身を含む): 30846240

約数和(自身を除く): 17360360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 5527, 11054, 22108, 27635, 44216, 55270, 110540, 221080, 337147, 674294, 1348588, 1685735, 2697176, 3371470, 6742940, 13485880]

約数ペア:

[(1, 13485880), (2, 6742940), (4, 3371470), (5, 2697176), (8, 1685735), (10, 1348588), (20, 674294), (40, 337147), (61, 221080), (122, 110540), (244, 55270), (305, 44216), (488, 27635), (610, 22108), (1220, 11054), (2440, 5527)]