20141420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 47038320

約数和(自身を除く): 26896900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 101, 118, 130, 169, 202, 236, 260, 295, 338, 404, 505, 590, 676, 767, 845, 1010, 1180, 1313, 1534, 1690, 2020, 2626, 3068, 3380, 3835, 5252, 5959, 6565, 7670, 9971, 11918, 13130, 15340, 17069, 19942, 23836, 26260, 29795, 34138, 39884, 49855, 59590, 68276, 77467, 85345, 99710, 119180, 154934, 170690, 199420, 309868, 341380, 387335, 774670, 1007071, 1549340, 2014142, 4028284, 5035355, 10070710, 20141420]

約数ペア:

[(1, 20141420), (2, 10070710), (4, 5035355), (5, 4028284), (10, 2014142), (13, 1549340), (20, 1007071), (26, 774670), (52, 387335), (59, 341380), (65, 309868), (101, 199420), (118, 170690), (130, 154934), (169, 119180), (202, 99710), (236, 85345), (260, 77467), (295, 68276), (338, 59590), (404, 49855), (505, 39884), (590, 34138), (676, 29795), (767, 26260), (845, 23836), (1010, 19942), (1180, 17069), (1313, 15340), (1534, 13130), (1690, 11918), (2020, 9971), (2626, 7670), (3068, 6565), (3380, 5959), (3835, 5252)]