20622440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16631}}^1$

素因数の和:16673

約数の個数: 32

約数和(自身を含む): 47900160

約数和(自身を除く): 27277720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16631, 33262, 66524, 83155, 133048, 166310, 332620, 515561, 665240, 1031122, 2062244, 2577805, 4124488, 5155610, 10311220, 20622440]

約数ペア:

[(1, 20622440), (2, 10311220), (4, 5155610), (5, 4124488), (8, 2577805), (10, 2062244), (20, 1031122), (31, 665240), (40, 515561), (62, 332620), (124, 166310), (155, 133048), (248, 83155), (310, 66524), (620, 33262), (1240, 16631)]