1258240

素因数分解:

$2^8\times 5^1\times {\mathrm{983}}^1$

素因数の和:1004

約数の個数: 36

約数和(自身を含む): 3016944

約数和(自身を除く): 1758704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 983, 1280, 1966, 3932, 4915, 7864, 9830, 15728, 19660, 31456, 39320, 62912, 78640, 125824, 157280, 251648, 314560, 629120, 1258240]

約数ペア:

[(1, 1258240), (2, 629120), (4, 314560), (5, 251648), (8, 157280), (10, 125824), (16, 78640), (20, 62912), (32, 39320), (40, 31456), (64, 19660), (80, 15728), (128, 9830), (160, 7864), (256, 4915), (320, 3932), (640, 1966), (983, 1280)]