18505830

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{12589}}^1$

素因数の和:12613

約数の個数: 48

約数和(自身を含む): 51669360

約数和(自身を除く): 33163530

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 12589, 25178, 37767, 62945, 75534, 88123, 125890, 176246, 188835, 264369, 377670, 440615, 528738, 616861, 881230, 1233722, 1321845, 1850583, 2643690, 3084305, 3701166, 6168610, 9252915, 18505830]

約数ペア:

[(1, 18505830), (2, 9252915), (3, 6168610), (5, 3701166), (6, 3084305), (7, 2643690), (10, 1850583), (14, 1321845), (15, 1233722), (21, 881230), (30, 616861), (35, 528738), (42, 440615), (49, 377670), (70, 264369), (98, 188835), (105, 176246), (147, 125890), (210, 88123), (245, 75534), (294, 62945), (490, 37767), (735, 25178), (1470, 12589)]