1264877440

素因数分解:

$2^7\times 5^1\times {\mathrm{1976371}}^1$

素因数の和:1976390

約数の個数: 32

約数和(自身を含む): 3023849160

約数和(自身を除く): 1758971720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1976371, 3952742, 7905484, 9881855, 15810968, 19763710, 31621936, 39527420, 63243872, 79054840, 126487744, 158109680, 252975488, 316219360, 632438720, 1264877440]

約数ペア:

[(1, 1264877440), (2, 632438720), (4, 316219360), (5, 252975488), (8, 158109680), (10, 126487744), (16, 79054840), (20, 63243872), (32, 39527420), (40, 31621936), (64, 19763710), (80, 15810968), (128, 9881855), (160, 7905484), (320, 3952742), (640, 1976371)]