1405427440

素因数分解:

$2^4\times 5^1\times {\mathrm{17567843}}^1$

素因数の和:17567856

約数の個数: 20

約数和(自身を含む): 3267618984

約数和(自身を除く): 1862191544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17567843, 35135686, 70271372, 87839215, 140542744, 175678430, 281085488, 351356860, 702713720, 1405427440]

約数ペア:

[(1, 1405427440), (2, 702713720), (4, 351356860), (5, 281085488), (8, 175678430), (10, 140542744), (16, 87839215), (20, 70271372), (40, 35135686), (80, 17567843)]