72649040

素因数分解:

$2^4\times 5^1\times {\mathrm{908113}}^1$

素因数の和:908126

約数の個数: 20

約数和(自身を含む): 168909204

約数和(自身を除く): 96260164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 908113, 1816226, 3632452, 4540565, 7264904, 9081130, 14529808, 18162260, 36324520, 72649040]

約数ペア:

[(1, 72649040), (2, 36324520), (4, 18162260), (5, 14529808), (8, 9081130), (10, 7264904), (16, 4540565), (20, 3632452), (40, 1816226), (80, 908113)]