247542520

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{74561}}^1$

素因数の和:74655

約数の個数: 32

約数和(自身を含む): 563688720

約数和(自身を除く): 316146200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 74561, 149122, 298244, 372805, 596488, 745610, 1491220, 2982440, 6188563, 12377126, 24754252, 30942815, 49508504, 61885630, 123771260, 247542520]

約数ペア:

[(1, 247542520), (2, 123771260), (4, 61885630), (5, 49508504), (8, 30942815), (10, 24754252), (20, 12377126), (40, 6188563), (83, 2982440), (166, 1491220), (332, 745610), (415, 596488), (664, 372805), (830, 298244), (1660, 149122), (3320, 74561)]