66785715

素因数分解:

$3^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1601}}^1$

素因数の和:1721

約数の個数: 40

約数和(自身を含む): 120957408

約数和(自身を除く): 54171693

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 103, 135, 309, 405, 515, 927, 1545, 1601, 2781, 4635, 4803, 8005, 8343, 13905, 14409, 24015, 41715, 43227, 72045, 129681, 164903, 216135, 494709, 648405, 824515, 1484127, 2473545, 4452381, 7420635, 13357143, 22261905, 66785715]

約数ペア:

[(1, 66785715), (3, 22261905), (5, 13357143), (9, 7420635), (15, 4452381), (27, 2473545), (45, 1484127), (81, 824515), (103, 648405), (135, 494709), (309, 216135), (405, 164903), (515, 129681), (927, 72045), (1545, 43227), (1601, 41715), (2781, 24015), (4635, 14409), (4803, 13905), (8005, 8343)]