31275280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12611}}^1$

素因数の和:12655

約数の個数: 40

約数和(自身を含む): 75066624

約数和(自身を除く): 43791344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 12611, 25222, 50444, 63055, 100888, 126110, 201776, 252220, 390941, 504440, 781882, 1008880, 1563764, 1954705, 3127528, 3909410, 6255056, 7818820, 15637640, 31275280]

約数ペア:

[(1, 31275280), (2, 15637640), (4, 7818820), (5, 6255056), (8, 3909410), (10, 3127528), (16, 1954705), (20, 1563764), (31, 1008880), (40, 781882), (62, 504440), (80, 390941), (124, 252220), (155, 201776), (248, 126110), (310, 100888), (496, 63055), (620, 50444), (1240, 25222), (2480, 12611)]