18176820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{617}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 51081408

約数和(自身を除く): 32904588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 491, 617, 982, 1234, 1473, 1851, 1964, 2455, 2468, 2946, 3085, 3702, 4910, 5892, 6170, 7365, 7404, 9255, 9820, 12340, 14730, 18510, 29460, 37020, 302947, 605894, 908841, 1211788, 1514735, 1817682, 3029470, 3635364, 4544205, 6058940, 9088410, 18176820]

約数ペア:

[(1, 18176820), (2, 9088410), (3, 6058940), (4, 4544205), (5, 3635364), (6, 3029470), (10, 1817682), (12, 1514735), (15, 1211788), (20, 908841), (30, 605894), (60, 302947), (491, 37020), (617, 29460), (982, 18510), (1234, 14730), (1473, 12340), (1851, 9820), (1964, 9255), (2455, 7404), (2468, 7365), (2946, 6170), (3085, 5892), (3702, 4910)]