13407020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{409}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 30996000

約数和(自身を除く): 17588980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 409, 596, 745, 818, 1490, 1636, 1639, 2045, 2980, 3278, 4090, 4499, 6556, 8180, 8195, 8998, 16390, 17996, 22495, 32780, 44990, 60941, 89980, 121882, 243764, 304705, 609410, 670351, 1218820, 1340702, 2681404, 3351755, 6703510, 13407020]

約数ペア:

[(1, 13407020), (2, 6703510), (4, 3351755), (5, 2681404), (10, 1340702), (11, 1218820), (20, 670351), (22, 609410), (44, 304705), (55, 243764), (110, 121882), (149, 89980), (220, 60941), (298, 44990), (409, 32780), (596, 22495), (745, 17996), (818, 16390), (1490, 8998), (1636, 8195), (1639, 8180), (2045, 6556), (2980, 4499), (3278, 4090)]