25620880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10331}}^1$

素因数の和:10375

約数の個数: 40

約数和(自身を含む): 61496064

約数和(自身を除く): 35875184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 10331, 20662, 41324, 51655, 82648, 103310, 165296, 206620, 320261, 413240, 640522, 826480, 1281044, 1601305, 2562088, 3202610, 5124176, 6405220, 12810440, 25620880]

約数ペア:

[(1, 25620880), (2, 12810440), (4, 6405220), (5, 5124176), (8, 3202610), (10, 2562088), (16, 1601305), (20, 1281044), (31, 826480), (40, 640522), (62, 413240), (80, 320261), (124, 206620), (155, 165296), (248, 103310), (310, 82648), (496, 51655), (620, 41324), (1240, 20662), (2480, 10331)]