61555580

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 133249536

約数和(自身を除く): 71693956

約数列:

[1, 2, 4, 5, 10, 20, 67, 71, 134, 142, 268, 284, 335, 355, 647, 670, 710, 1294, 1340, 1420, 2588, 3235, 4757, 6470, 9514, 12940, 19028, 23785, 43349, 45937, 47570, 86698, 91874, 95140, 173396, 183748, 216745, 229685, 433490, 459370, 866980, 918740, 3077779, 6155558, 12311116, 15388895, 30777790, 61555580]

約数ペア:

[(1, 61555580), (2, 30777790), (4, 15388895), (5, 12311116), (10, 6155558), (20, 3077779), (67, 918740), (71, 866980), (134, 459370), (142, 433490), (268, 229685), (284, 216745), (335, 183748), (355, 173396), (647, 95140), (670, 91874), (710, 86698), (1294, 47570), (1340, 45937), (1420, 43349), (2588, 23785), (3235, 19028), (4757, 12940), (6470, 9514)]