261879075

素因数分解:

$3^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1637}}^1$

素因数の和:1738

約数の個数: 60

約数和(自身を含む): 491531040

約数和(自身を除く): 229651965

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 79, 81, 135, 225, 237, 395, 405, 675, 711, 1185, 1637, 1975, 2025, 2133, 3555, 4911, 5925, 6399, 8185, 10665, 14733, 17775, 24555, 31995, 40925, 44199, 53325, 73665, 122775, 129323, 132597, 159975, 220995, 368325, 387969, 646615, 662985, 1104975, 1163907, 1939845, 3233075, 3314925, 3491721, 5819535, 9699225, 10475163, 17458605, 29097675, 52375815, 87293025, 261879075]

約数ペア:

[(1, 261879075), (3, 87293025), (5, 52375815), (9, 29097675), (15, 17458605), (25, 10475163), (27, 9699225), (45, 5819535), (75, 3491721), (79, 3314925), (81, 3233075), (135, 1939845), (225, 1163907), (237, 1104975), (395, 662985), (405, 646615), (675, 387969), (711, 368325), (1185, 220995), (1637, 159975), (1975, 132597), (2025, 129323), (2133, 122775), (3555, 73665), (4911, 53325), (5925, 44199), (6399, 40925), (8185, 31995), (10665, 24555), (14733, 17775)]