51999120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{72221}}^1$

素因数の和:72240

約数の個数: 60

約数和(自身を含む): 174632796

約数和(自身を除く): 122633676

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 72221, 144442, 216663, 288884, 361105, 433326, 577768, 649989, 722210, 866652, 1083315, 1155536, 1299978, 1444420, 1733304, 2166630, 2599956, 2888840, 3249945, 3466608, 4333260, 5199912, 5777680, 6499890, 8666520, 10399824, 12999780, 17333040, 25999560, 51999120]

約数ペア:

[(1, 51999120), (2, 25999560), (3, 17333040), (4, 12999780), (5, 10399824), (6, 8666520), (8, 6499890), (9, 5777680), (10, 5199912), (12, 4333260), (15, 3466608), (16, 3249945), (18, 2888840), (20, 2599956), (24, 2166630), (30, 1733304), (36, 1444420), (40, 1299978), (45, 1155536), (48, 1083315), (60, 866652), (72, 722210), (80, 649989), (90, 577768), (120, 433326), (144, 361105), (180, 288884), (240, 216663), (360, 144442), (720, 72221)]