61738760

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21739}}^1$

素因数の和:21821

約数の個数: 32

約数和(自身を含む): 140875200

約数和(自身を除く): 79136440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 21739, 43478, 86956, 108695, 173912, 217390, 434780, 869560, 1543469, 3086938, 6173876, 7717345, 12347752, 15434690, 30869380, 61738760]

約数ペア:

[(1, 61738760), (2, 30869380), (4, 15434690), (5, 12347752), (8, 7717345), (10, 6173876), (20, 3086938), (40, 1543469), (71, 869560), (142, 434780), (284, 217390), (355, 173912), (568, 108695), (710, 86956), (1420, 43478), (2840, 21739)]