40072840

素因数分解:

$2^3\times 5^1\times {\mathrm{1001821}}^1$

素因数の和:1001832

約数の個数: 16

約数和(自身を含む): 90163980

約数和(自身を除く): 50091140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1001821, 2003642, 4007284, 5009105, 8014568, 10018210, 20036420, 40072840]

約数ペア:

[(1, 40072840), (2, 20036420), (4, 10018210), (5, 8014568), (8, 5009105), (10, 4007284), (20, 2003642), (40, 1001821)]