64844680

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{15739}}^1$

素因数の和:15853

約数の個数: 32

約数和(自身を含む): 147326400

約数和(自身を除く): 82481720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 15739, 31478, 62956, 78695, 125912, 157390, 314780, 629560, 1621117, 3242234, 6484468, 8105585, 12968936, 16211170, 32422340, 64844680]

約数ペア:

[(1, 64844680), (2, 32422340), (4, 16211170), (5, 12968936), (8, 8105585), (10, 6484468), (20, 3242234), (40, 1621117), (103, 629560), (206, 314780), (412, 157390), (515, 125912), (824, 78695), (1030, 62956), (2060, 31478), (4120, 15739)]