625280

素因数分解:

$2^7\times 5^1\times {\mathrm{977}}^1$

素因数の和:996

約数の個数: 32

約数和(自身を含む): 1496340

約数和(自身を除く): 871060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 977, 1954, 3908, 4885, 7816, 9770, 15632, 19540, 31264, 39080, 62528, 78160, 125056, 156320, 312640, 625280]

約数ペア:

[(1, 625280), (2, 312640), (4, 156320), (5, 125056), (8, 78160), (10, 62528), (16, 39080), (20, 31264), (32, 19540), (40, 15632), (64, 9770), (80, 7816), (128, 4885), (160, 3908), (320, 1954), (640, 977)]