16688750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^2\times {\mathrm{79}}^1$

素因数の和:127

約数の個数: 60

約数和(自身を含む): 34301520

約数和(自身を除く): 17612770

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 79, 125, 130, 158, 169, 250, 325, 338, 395, 625, 650, 790, 845, 1027, 1250, 1625, 1690, 1975, 2054, 3250, 3950, 4225, 5135, 8125, 8450, 9875, 10270, 13351, 16250, 19750, 21125, 25675, 26702, 42250, 49375, 51350, 66755, 98750, 105625, 128375, 133510, 211250, 256750, 333775, 641875, 667550, 1283750, 1668875, 3337750, 8344375, 16688750]

約数ペア:

[(1, 16688750), (2, 8344375), (5, 3337750), (10, 1668875), (13, 1283750), (25, 667550), (26, 641875), (50, 333775), (65, 256750), (79, 211250), (125, 133510), (130, 128375), (158, 105625), (169, 98750), (250, 66755), (325, 51350), (338, 49375), (395, 42250), (625, 26702), (650, 25675), (790, 21125), (845, 19750), (1027, 16250), (1250, 13351), (1625, 10270), (1690, 9875), (1975, 8450), (2054, 8125), (3250, 5135), (3950, 4225)]