20359485

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 18347715

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 79, 83, 115, 135, 207, 237, 249, 345, 395, 415, 621, 711, 747, 1035, 1185, 1245, 1817, 1909, 2133, 2241, 3105, 3555, 3735, 5451, 5727, 6557, 9085, 9545, 10665, 11205, 16353, 17181, 19671, 27255, 28635, 32785, 49059, 51543, 59013, 81765, 85905, 98355, 150811, 177039, 245295, 257715, 295065, 452433, 754055, 885195, 1357299, 2262165, 4071897, 6786495, 20359485]

約数ペア:

[(1, 20359485), (3, 6786495), (5, 4071897), (9, 2262165), (15, 1357299), (23, 885195), (27, 754055), (45, 452433), (69, 295065), (79, 257715), (83, 245295), (115, 177039), (135, 150811), (207, 98355), (237, 85905), (249, 81765), (345, 59013), (395, 51543), (415, 49059), (621, 32785), (711, 28635), (747, 27255), (1035, 19671), (1185, 17181), (1245, 16353), (1817, 11205), (1909, 10665), (2133, 9545), (2241, 9085), (3105, 6557), (3555, 5727), (3735, 5451)]