30819980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{90647}}^1$

素因数の和:90673

約数の個数: 24

約数和(自身を含む): 68529888

約数和(自身を除く): 37709908

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 90647, 181294, 362588, 453235, 906470, 1540999, 1812940, 3081998, 6163996, 7704995, 15409990, 30819980]

約数ペア:

[(1, 30819980), (2, 15409990), (4, 7704995), (5, 6163996), (10, 3081998), (17, 1812940), (20, 1540999), (34, 906470), (68, 453235), (85, 362588), (170, 181294), (340, 90647)]