490695400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{188729}}^1$

素因数の和:188758

約数の個数: 48

約数和(自身を含む): 1228632300

約数和(自身を除く): 737936900

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 188729, 377458, 754916, 943645, 1509832, 1887290, 2453477, 3774580, 4718225, 4906954, 7549160, 9436450, 9813908, 12267385, 18872900, 19627816, 24534770, 37745800, 49069540, 61336925, 98139080, 122673850, 245347700, 490695400]

約数ペア:

[(1, 490695400), (2, 245347700), (4, 122673850), (5, 98139080), (8, 61336925), (10, 49069540), (13, 37745800), (20, 24534770), (25, 19627816), (26, 18872900), (40, 12267385), (50, 9813908), (52, 9436450), (65, 7549160), (100, 4906954), (104, 4718225), (130, 3774580), (200, 2453477), (260, 1887290), (325, 1509832), (520, 943645), (650, 754916), (1300, 377458), (2600, 188729)]