661480

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{719}}^1$

素因数の和:753

約数の個数: 32

約数和(自身を含む): 1555200

約数和(自身を除く): 893720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 719, 920, 1438, 2876, 3595, 5752, 7190, 14380, 16537, 28760, 33074, 66148, 82685, 132296, 165370, 330740, 661480]

約数ペア:

[(1, 661480), (2, 330740), (4, 165370), (5, 132296), (8, 82685), (10, 66148), (20, 33074), (23, 28760), (40, 16537), (46, 14380), (92, 7190), (115, 5752), (184, 3595), (230, 2876), (460, 1438), (719, 920)]