18178245

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 33126912

約数和(自身を除く): 14948667

約数列:

[1, 3, 5, 9, 15, 31, 45, 83, 93, 155, 157, 249, 279, 415, 465, 471, 747, 785, 1245, 1395, 1413, 2355, 2573, 3735, 4867, 7065, 7719, 12865, 13031, 14601, 23157, 24335, 38595, 39093, 43803, 65155, 73005, 115785, 117279, 195465, 219015, 403961, 586395, 1211883, 2019805, 3635649, 6059415, 18178245]

約数ペア:

[(1, 18178245), (3, 6059415), (5, 3635649), (9, 2019805), (15, 1211883), (31, 586395), (45, 403961), (83, 219015), (93, 195465), (155, 117279), (157, 115785), (249, 73005), (279, 65155), (415, 43803), (465, 39093), (471, 38595), (747, 24335), (785, 23157), (1245, 14601), (1395, 13031), (1413, 12865), (2355, 7719), (2573, 7065), (3735, 4867)]