20626160

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8317}}^1$

素因数の和:8361

約数の個数: 40

約数和(自身を含む): 49508736

約数和(自身を除く): 28882576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8317, 16634, 33268, 41585, 66536, 83170, 133072, 166340, 257827, 332680, 515654, 665360, 1031308, 1289135, 2062616, 2578270, 4125232, 5156540, 10313080, 20626160]

約数ペア:

[(1, 20626160), (2, 10313080), (4, 5156540), (5, 4125232), (8, 2578270), (10, 2062616), (16, 1289135), (20, 1031308), (31, 665360), (40, 515654), (62, 332680), (80, 257827), (124, 166340), (155, 133072), (248, 83170), (310, 66536), (496, 41585), (620, 33268), (1240, 16634), (2480, 8317)]