256805500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{239}}^1\times {\mathrm{307}}^1$

素因数の和:572

約数の個数: 96

約数和(自身を含む): 645765120

約数和(自身を除く): 388959620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 239, 250, 307, 350, 478, 500, 614, 700, 875, 956, 1195, 1228, 1535, 1673, 1750, 2149, 2390, 3070, 3346, 3500, 4298, 4780, 5975, 6140, 6692, 7675, 8365, 8596, 10745, 11950, 15350, 16730, 21490, 23900, 29875, 30700, 33460, 38375, 41825, 42980, 53725, 59750, 73373, 76750, 83650, 107450, 119500, 146746, 153500, 167300, 209125, 214900, 268625, 293492, 366865, 418250, 513611, 537250, 733730, 836500, 1027222, 1074500, 1467460, 1834325, 2054444, 2568055, 3668650, 5136110, 7337300, 9171625, 10272220, 12840275, 18343250, 25680550, 36686500, 51361100, 64201375, 128402750, 256805500]

約数ペア:

[(1, 256805500), (2, 128402750), (4, 64201375), (5, 51361100), (7, 36686500), (10, 25680550), (14, 18343250), (20, 12840275), (25, 10272220), (28, 9171625), (35, 7337300), (50, 5136110), (70, 3668650), (100, 2568055), (125, 2054444), (140, 1834325), (175, 1467460), (239, 1074500), (250, 1027222), (307, 836500), (350, 733730), (478, 537250), (500, 513611), (614, 418250), (700, 366865), (875, 293492), (956, 268625), (1195, 214900), (1228, 209125), (1535, 167300), (1673, 153500), (1750, 146746), (2149, 119500), (2390, 107450), (3070, 83650), (3346, 76750), (3500, 73373), (4298, 59750), (4780, 53725), (5975, 42980), (6140, 41825), (6692, 38375), (7675, 33460), (8365, 30700), (8596, 29875), (10745, 23900), (11950, 21490), (15350, 16730)]