1320293720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1064753}}^1$

素因数の和:1064795

約数の個数: 32

約数和(自身を含む): 3066491520

約数和(自身を除く): 1746197800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1064753, 2129506, 4259012, 5323765, 8518024, 10647530, 21295060, 33007343, 42590120, 66014686, 132029372, 165036715, 264058744, 330073430, 660146860, 1320293720]

約数ペア:

[(1, 1320293720), (2, 660146860), (4, 330073430), (5, 264058744), (8, 165036715), (10, 132029372), (20, 66014686), (31, 42590120), (40, 33007343), (62, 21295060), (124, 10647530), (155, 8518024), (248, 5323765), (310, 4259012), (620, 2129506), (1240, 1064753)]