18279990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2011}}^1$

素因数の和:2125

約数の個数: 48

約数和(自身を含む): 48022416

約数和(自身を除く): 29742426

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 101, 202, 303, 505, 606, 909, 1010, 1515, 1818, 2011, 3030, 4022, 4545, 6033, 9090, 10055, 12066, 18099, 20110, 30165, 36198, 60330, 90495, 180990, 203111, 406222, 609333, 1015555, 1218666, 1827999, 2031110, 3046665, 3655998, 6093330, 9139995, 18279990]

約数ペア:

[(1, 18279990), (2, 9139995), (3, 6093330), (5, 3655998), (6, 3046665), (9, 2031110), (10, 1827999), (15, 1218666), (18, 1015555), (30, 609333), (45, 406222), (90, 203111), (101, 180990), (202, 90495), (303, 60330), (505, 36198), (606, 30165), (909, 20110), (1010, 18099), (1515, 12066), (1818, 10055), (2011, 9090), (3030, 6033), (4022, 4545)]