209565090

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{110881}}^1$

素因数の和:110904

約数の個数: 64

約数和(自身を含む): 638680320

約数和(自身を除く): 429115230

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 110881, 221762, 332643, 554405, 665286, 776167, 997929, 1108810, 1552334, 1663215, 1995858, 2328501, 2993787, 3326430, 3880835, 4657002, 4989645, 5987574, 6985503, 7761670, 9979290, 11642505, 13971006, 14968935, 20956509, 23285010, 29937870, 34927515, 41913018, 69855030, 104782545, 209565090]

約数ペア:

[(1, 209565090), (2, 104782545), (3, 69855030), (5, 41913018), (6, 34927515), (7, 29937870), (9, 23285010), (10, 20956509), (14, 14968935), (15, 13971006), (18, 11642505), (21, 9979290), (27, 7761670), (30, 6985503), (35, 5987574), (42, 4989645), (45, 4657002), (54, 3880835), (63, 3326430), (70, 2993787), (90, 2328501), (105, 1995858), (126, 1663215), (135, 1552334), (189, 1108810), (210, 997929), (270, 776167), (315, 665286), (378, 554405), (630, 332643), (945, 221762), (1890, 110881)]