20398890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{23447}}^1$

素因数の和:23486

約数の個数: 32

約数和(自身を含む): 50647680

約数和(自身を除く): 30248790

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870, 23447, 46894, 70341, 117235, 140682, 234470, 351705, 679963, 703410, 1359926, 2039889, 3399815, 4079778, 6799630, 10199445, 20398890]

約数ペア:

[(1, 20398890), (2, 10199445), (3, 6799630), (5, 4079778), (6, 3399815), (10, 2039889), (15, 1359926), (29, 703410), (30, 679963), (58, 351705), (87, 234470), (145, 140682), (174, 117235), (290, 70341), (435, 46894), (870, 23447)]