12810440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10331}}^1$

素因数の和:10373

約数の個数: 32

約数和(自身を含む): 29756160

約数和(自身を除く): 16945720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 10331, 20662, 41324, 51655, 82648, 103310, 206620, 320261, 413240, 640522, 1281044, 1601305, 2562088, 3202610, 6405220, 12810440]

約数ペア:

[(1, 12810440), (2, 6405220), (4, 3202610), (5, 2562088), (8, 1601305), (10, 1281044), (20, 640522), (31, 413240), (40, 320261), (62, 206620), (124, 103310), (155, 82648), (248, 51655), (310, 41324), (620, 20662), (1240, 10331)]