1990870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 4432320

約数和(自身を除く): 2441450

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 49, 70, 85, 98, 119, 170, 238, 239, 245, 478, 490, 595, 833, 1190, 1195, 1666, 1673, 2390, 3346, 4063, 4165, 8126, 8330, 8365, 11711, 16730, 20315, 23422, 28441, 40630, 56882, 58555, 117110, 142205, 199087, 284410, 398174, 995435, 1990870]

約数ペア:

[(1, 1990870), (2, 995435), (5, 398174), (7, 284410), (10, 199087), (14, 142205), (17, 117110), (34, 58555), (35, 56882), (49, 40630), (70, 28441), (85, 23422), (98, 20315), (119, 16730), (170, 11711), (238, 8365), (239, 8330), (245, 8126), (478, 4165), (490, 4063), (595, 3346), (833, 2390), (1190, 1673), (1195, 1666)]