890489740

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{271}}^1\times {\mathrm{479}}^1$

素因数の和:780

約数の個数: 96

約数和(自身を含む): 2193408000

約数和(自身を除く): 1302918260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 271, 343, 479, 490, 542, 686, 958, 980, 1084, 1355, 1372, 1715, 1897, 1916, 2395, 2710, 3353, 3430, 3794, 4790, 5420, 6706, 6860, 7588, 9485, 9580, 13279, 13412, 16765, 18970, 23471, 26558, 33530, 37940, 46942, 53116, 66395, 67060, 92953, 93884, 117355, 129809, 132790, 164297, 185906, 234710, 259618, 265580, 328594, 371812, 464765, 469420, 519236, 649045, 657188, 821485, 908663, 929530, 1298090, 1642970, 1817326, 1859060, 2596180, 3285940, 3634652, 4543315, 6360641, 9086630, 12721282, 18173260, 25442564, 31803205, 44524487, 63606410, 89048974, 127212820, 178097948, 222622435, 445244870, 890489740]

約数ペア:

[(1, 890489740), (2, 445244870), (4, 222622435), (5, 178097948), (7, 127212820), (10, 89048974), (14, 63606410), (20, 44524487), (28, 31803205), (35, 25442564), (49, 18173260), (70, 12721282), (98, 9086630), (140, 6360641), (196, 4543315), (245, 3634652), (271, 3285940), (343, 2596180), (479, 1859060), (490, 1817326), (542, 1642970), (686, 1298090), (958, 929530), (980, 908663), (1084, 821485), (1355, 657188), (1372, 649045), (1715, 519236), (1897, 469420), (1916, 464765), (2395, 371812), (2710, 328594), (3353, 265580), (3430, 259618), (3794, 234710), (4790, 185906), (5420, 164297), (6706, 132790), (6860, 129809), (7588, 117355), (9485, 93884), (9580, 92953), (13279, 67060), (13412, 66395), (16765, 53116), (18970, 46942), (23471, 37940), (26558, 33530)]