78841000

素因数分解:

$2^3\times 5^3\times 7^2\times {\mathrm{1609}}^1$

素因数の和:1644

約数の個数: 96

約数和(自身を含む): 214741800

約数和(自身を除く): 135900800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 125, 140, 175, 196, 200, 245, 250, 280, 350, 392, 490, 500, 700, 875, 980, 1000, 1225, 1400, 1609, 1750, 1960, 2450, 3218, 3500, 4900, 6125, 6436, 7000, 8045, 9800, 11263, 12250, 12872, 16090, 22526, 24500, 32180, 40225, 45052, 49000, 56315, 64360, 78841, 80450, 90104, 112630, 157682, 160900, 201125, 225260, 281575, 315364, 321800, 394205, 402250, 450520, 563150, 630728, 788410, 804500, 1126300, 1407875, 1576820, 1609000, 1971025, 2252600, 2815750, 3153640, 3942050, 5631500, 7884100, 9855125, 11263000, 15768200, 19710250, 39420500, 78841000]

約数ペア:

[(1, 78841000), (2, 39420500), (4, 19710250), (5, 15768200), (7, 11263000), (8, 9855125), (10, 7884100), (14, 5631500), (20, 3942050), (25, 3153640), (28, 2815750), (35, 2252600), (40, 1971025), (49, 1609000), (50, 1576820), (56, 1407875), (70, 1126300), (98, 804500), (100, 788410), (125, 630728), (140, 563150), (175, 450520), (196, 402250), (200, 394205), (245, 321800), (250, 315364), (280, 281575), (350, 225260), (392, 201125), (490, 160900), (500, 157682), (700, 112630), (875, 90104), (980, 80450), (1000, 78841), (1225, 64360), (1400, 56315), (1609, 49000), (1750, 45052), (1960, 40225), (2450, 32180), (3218, 24500), (3500, 22526), (4900, 16090), (6125, 12872), (6436, 12250), (7000, 11263), (8045, 9800)]