72409240

素因数分解:

$2^3\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{1787}}^1$

素因数の和:2811

約数の個数: 32

約数和(自身を含む): 163172880

約数和(自身を除く): 90763640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1013, 1787, 2026, 3574, 4052, 5065, 7148, 8104, 8935, 10130, 14296, 17870, 20260, 35740, 40520, 71480, 1810231, 3620462, 7240924, 9051155, 14481848, 18102310, 36204620, 72409240]

約数ペア:

[(1, 72409240), (2, 36204620), (4, 18102310), (5, 14481848), (8, 9051155), (10, 7240924), (20, 3620462), (40, 1810231), (1013, 71480), (1787, 40520), (2026, 35740), (3574, 20260), (4052, 17870), (5065, 14296), (7148, 10130), (8104, 8935)]