72408920

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{17923}}^1$

素因数の和:18035

約数の個数: 32

約数和(自身を含む): 164542320

約数和(自身を除く): 92133400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 17923, 35846, 71692, 89615, 143384, 179230, 358460, 716920, 1810223, 3620446, 7240892, 9051115, 14481784, 18102230, 36204460, 72408920]

約数ペア:

[(1, 72408920), (2, 36204460), (4, 18102230), (5, 14481784), (8, 9051115), (10, 7240892), (20, 3620446), (40, 1810223), (101, 716920), (202, 358460), (404, 179230), (505, 143384), (808, 89615), (1010, 71692), (2020, 35846), (4040, 17923)]