20008960

素因数分解:

$2^{12}\times 5^1\times {\mathrm{977}}^1$

素因数の和:1006

約数の個数: 52

約数和(自身を含む): 48064788

約数和(自身を除く): 28055828

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 977, 1024, 1280, 1954, 2048, 2560, 3908, 4096, 4885, 5120, 7816, 9770, 10240, 15632, 19540, 20480, 31264, 39080, 62528, 78160, 125056, 156320, 250112, 312640, 500224, 625280, 1000448, 1250560, 2000896, 2501120, 4001792, 5002240, 10004480, 20008960]

約数ペア:

[(1, 20008960), (2, 10004480), (4, 5002240), (5, 4001792), (8, 2501120), (10, 2000896), (16, 1250560), (20, 1000448), (32, 625280), (40, 500224), (64, 312640), (80, 250112), (128, 156320), (160, 125056), (256, 78160), (320, 62528), (512, 39080), (640, 31264), (977, 20480), (1024, 19540), (1280, 15632), (1954, 10240), (2048, 9770), (2560, 7816), (3908, 5120), (4096, 4885)]