28492780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{773}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 63715680

約数和(自身を除く): 35222900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 485, 773, 970, 1546, 1843, 1940, 3092, 3686, 3865, 7372, 7730, 9215, 14687, 15460, 18430, 29374, 36860, 58748, 73435, 74981, 146870, 149962, 293740, 299924, 374905, 749810, 1424639, 1499620, 2849278, 5698556, 7123195, 14246390, 28492780]

約数ペア:

[(1, 28492780), (2, 14246390), (4, 7123195), (5, 5698556), (10, 2849278), (19, 1499620), (20, 1424639), (38, 749810), (76, 374905), (95, 299924), (97, 293740), (190, 149962), (194, 146870), (380, 74981), (388, 73435), (485, 58748), (773, 36860), (970, 29374), (1546, 18430), (1843, 15460), (1940, 14687), (3092, 9215), (3686, 7730), (3865, 7372)]