18815692820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{177943}}^1$

素因数の和:178280

約数の個数: 48

約数和(自身を含む): 41972007168

約数和(自身を除く): 23156314348

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 311, 340, 622, 1244, 1555, 3110, 5287, 6220, 10574, 21148, 26435, 52870, 105740, 177943, 355886, 711772, 889715, 1779430, 3025031, 3558860, 6050062, 12100124, 15125155, 30250310, 55340273, 60500620, 110680546, 221361092, 276701365, 553402730, 940784641, 1106805460, 1881569282, 3763138564, 4703923205, 9407846410, 18815692820]

約数ペア:

[(1, 18815692820), (2, 9407846410), (4, 4703923205), (5, 3763138564), (10, 1881569282), (17, 1106805460), (20, 940784641), (34, 553402730), (68, 276701365), (85, 221361092), (170, 110680546), (311, 60500620), (340, 55340273), (622, 30250310), (1244, 15125155), (1555, 12100124), (3110, 6050062), (5287, 3558860), (6220, 3025031), (10574, 1779430), (21148, 889715), (26435, 711772), (52870, 355886), (105740, 177943)]