18345980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{673}}^1$

素因数の和:758

約数の個数: 48

約数和(自身を含む): 40763520

約数和(自身を除く): 22417540

約数列:

[1, 2, 4, 5, 10, 20, 29, 47, 58, 94, 116, 145, 188, 235, 290, 470, 580, 673, 940, 1346, 1363, 2692, 2726, 3365, 5452, 6730, 6815, 13460, 13630, 19517, 27260, 31631, 39034, 63262, 78068, 97585, 126524, 158155, 195170, 316310, 390340, 632620, 917299, 1834598, 3669196, 4586495, 9172990, 18345980]

約数ペア:

[(1, 18345980), (2, 9172990), (4, 4586495), (5, 3669196), (10, 1834598), (20, 917299), (29, 632620), (47, 390340), (58, 316310), (94, 195170), (116, 158155), (145, 126524), (188, 97585), (235, 78068), (290, 63262), (470, 39034), (580, 31631), (673, 27260), (940, 19517), (1346, 13630), (1363, 13460), (2692, 6815), (2726, 6730), (3365, 5452)]