201909100

素因数分解:

$2^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{19991}}^1$

素因数の和:20106

約数の個数: 36

約数和(自身を含む): 442502928

約数和(自身を除く): 240593828

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 202, 404, 505, 1010, 2020, 2525, 5050, 10100, 19991, 39982, 79964, 99955, 199910, 399820, 499775, 999550, 1999100, 2019091, 4038182, 8076364, 10095455, 20190910, 40381820, 50477275, 100954550, 201909100]

約数ペア:

[(1, 201909100), (2, 100954550), (4, 50477275), (5, 40381820), (10, 20190910), (20, 10095455), (25, 8076364), (50, 4038182), (100, 2019091), (101, 1999100), (202, 999550), (404, 499775), (505, 399820), (1010, 199910), (2020, 99955), (2525, 79964), (5050, 39982), (10100, 19991)]