30719080

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{2239}}^1$

素因数の和:2271

約数の個数: 64

約数和(自身を含む): 80640000

約数和(自身を除く): 49920920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2239, 2744, 3430, 4478, 6860, 8956, 11195, 13720, 15673, 17912, 22390, 31346, 44780, 62692, 78365, 89560, 109711, 125384, 156730, 219422, 313460, 438844, 548555, 626920, 767977, 877688, 1097110, 1535954, 2194220, 3071908, 3839885, 4388440, 6143816, 7679770, 15359540, 30719080]

約数ペア:

[(1, 30719080), (2, 15359540), (4, 7679770), (5, 6143816), (7, 4388440), (8, 3839885), (10, 3071908), (14, 2194220), (20, 1535954), (28, 1097110), (35, 877688), (40, 767977), (49, 626920), (56, 548555), (70, 438844), (98, 313460), (140, 219422), (196, 156730), (245, 125384), (280, 109711), (343, 89560), (392, 78365), (490, 62692), (686, 44780), (980, 31346), (1372, 22390), (1715, 17912), (1960, 15673), (2239, 13720), (2744, 11195), (3430, 8956), (4478, 6860)]