201975020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{18947}}^1$

素因数の和:19010

約数の個数: 48

約数和(自身を含む): 467939808

約数和(自身を除く): 265964788

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2132, 2665, 5330, 10660, 18947, 37894, 75788, 94735, 189470, 246311, 378940, 492622, 776827, 985244, 1231555, 1553654, 2463110, 3107308, 3884135, 4926220, 7768270, 10098751, 15536540, 20197502, 40395004, 50493755, 100987510, 201975020]

約数ペア:

[(1, 201975020), (2, 100987510), (4, 50493755), (5, 40395004), (10, 20197502), (13, 15536540), (20, 10098751), (26, 7768270), (41, 4926220), (52, 3884135), (65, 3107308), (82, 2463110), (130, 1553654), (164, 1231555), (205, 985244), (260, 776827), (410, 492622), (533, 378940), (820, 246311), (1066, 189470), (2132, 94735), (2665, 75788), (5330, 37894), (10660, 18947)]