72740440

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{9521}}^1$

素因数の和:9723

約数の個数: 32

約数和(自身を含む): 164540160

約数和(自身を除く): 91799720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 9521, 19042, 38084, 47605, 76168, 95210, 190420, 380840, 1818511, 3637022, 7274044, 9092555, 14548088, 18185110, 36370220, 72740440]

約数ペア:

[(1, 72740440), (2, 36370220), (4, 18185110), (5, 14548088), (8, 9092555), (10, 7274044), (20, 3637022), (40, 1818511), (191, 380840), (382, 190420), (764, 95210), (955, 76168), (1528, 47605), (1910, 38084), (3820, 19042), (7640, 9521)]