18195675

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 31664640

約数和(自身を除く): 13468965

約数列:

[1, 3, 5, 15, 25, 37, 75, 79, 83, 111, 185, 237, 249, 395, 415, 555, 925, 1185, 1245, 1975, 2075, 2775, 2923, 3071, 5925, 6225, 6557, 8769, 9213, 14615, 15355, 19671, 32785, 43845, 46065, 73075, 76775, 98355, 163925, 219225, 230325, 242609, 491775, 727827, 1213045, 3639135, 6065225, 18195675]

約数ペア:

[(1, 18195675), (3, 6065225), (5, 3639135), (15, 1213045), (25, 727827), (37, 491775), (75, 242609), (79, 230325), (83, 219225), (111, 163925), (185, 98355), (237, 76775), (249, 73075), (395, 46065), (415, 43845), (555, 32785), (925, 19671), (1185, 15355), (1245, 14615), (1975, 9213), (2075, 8769), (2775, 6557), (2923, 6225), (3071, 5925)]