890393000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{311}}^1\times {\mathrm{409}}^1$

素因数の和:748

約数の個数: 128

約数和(自身を含む): 2394662400

約数和(自身を除く): 1504269400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 311, 350, 409, 500, 622, 700, 818, 875, 1000, 1244, 1400, 1555, 1636, 1750, 2045, 2177, 2488, 2863, 3110, 3272, 3500, 4090, 4354, 5726, 6220, 7000, 7775, 8180, 8708, 10225, 10885, 11452, 12440, 14315, 15550, 16360, 17416, 20450, 21770, 22904, 28630, 31100, 38875, 40900, 43540, 51125, 54425, 57260, 62200, 71575, 77750, 81800, 87080, 102250, 108850, 114520, 127199, 143150, 155500, 204500, 217700, 254398, 272125, 286300, 311000, 357875, 409000, 435400, 508796, 544250, 572600, 635995, 715750, 890393, 1017592, 1088500, 1271990, 1431500, 1780786, 2177000, 2543980, 2863000, 3179975, 3561572, 4451965, 5087960, 6359950, 7123144, 8903930, 12719900, 15899875, 17807860, 22259825, 25439800, 31799750, 35615720, 44519650, 63599500, 89039300, 111299125, 127199000, 178078600, 222598250, 445196500, 890393000]

約数ペア:

[(1, 890393000), (2, 445196500), (4, 222598250), (5, 178078600), (7, 127199000), (8, 111299125), (10, 89039300), (14, 63599500), (20, 44519650), (25, 35615720), (28, 31799750), (35, 25439800), (40, 22259825), (50, 17807860), (56, 15899875), (70, 12719900), (100, 8903930), (125, 7123144), (140, 6359950), (175, 5087960), (200, 4451965), (250, 3561572), (280, 3179975), (311, 2863000), (350, 2543980), (409, 2177000), (500, 1780786), (622, 1431500), (700, 1271990), (818, 1088500), (875, 1017592), (1000, 890393), (1244, 715750), (1400, 635995), (1555, 572600), (1636, 544250), (1750, 508796), (2045, 435400), (2177, 409000), (2488, 357875), (2863, 311000), (3110, 286300), (3272, 272125), (3500, 254398), (4090, 217700), (4354, 204500), (5726, 155500), (6220, 143150), (7000, 127199), (7775, 114520), (8180, 108850), (8708, 102250), (10225, 87080), (10885, 81800), (11452, 77750), (12440, 71575), (14315, 62200), (15550, 57260), (16360, 54425), (17416, 51125), (20450, 43540), (21770, 40900), (22904, 38875), (28630, 31100)]