40899440

素因数分解:

$2^4\times 5^1\times {\mathrm{511243}}^1$

素因数の和:511256

約数の個数: 20

約数和(自身を含む): 95091384

約数和(自身を除く): 54191944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 511243, 1022486, 2044972, 2556215, 4089944, 5112430, 8179888, 10224860, 20449720, 40899440]

約数ペア:

[(1, 40899440), (2, 20449720), (4, 10224860), (5, 8179888), (8, 5112430), (10, 4089944), (16, 2556215), (20, 2044972), (40, 1022486), (80, 511243)]