2501120

素因数分解:

$2^9\times 5^1\times {\mathrm{977}}^1$

素因数の和:1000

約数の個数: 40

約数和(自身を含む): 6002964

約数和(自身を除く): 3501844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 977, 1280, 1954, 2560, 3908, 4885, 7816, 9770, 15632, 19540, 31264, 39080, 62528, 78160, 125056, 156320, 250112, 312640, 500224, 625280, 1250560, 2501120]

約数ペア:

[(1, 2501120), (2, 1250560), (4, 625280), (5, 500224), (8, 312640), (10, 250112), (16, 156320), (20, 125056), (32, 78160), (40, 62528), (64, 39080), (80, 31264), (128, 19540), (160, 15632), (256, 9770), (320, 7816), (512, 4885), (640, 3908), (977, 2560), (1280, 1954)]