256864000

素因数分解:

$2^8\times 5^3\times {\mathrm{23}}^1\times {\mathrm{349}}^1$

素因数の和:403

約数の個数: 144

約数和(自身を含む): 669614400

約数和(自身を除く): 412750400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 92, 100, 115, 125, 128, 160, 184, 200, 230, 250, 256, 320, 349, 368, 400, 460, 500, 575, 640, 698, 736, 800, 920, 1000, 1150, 1280, 1396, 1472, 1600, 1745, 1840, 2000, 2300, 2792, 2875, 2944, 3200, 3490, 3680, 4000, 4600, 5584, 5750, 5888, 6400, 6980, 7360, 8000, 8027, 8725, 9200, 11168, 11500, 13960, 14720, 16000, 16054, 17450, 18400, 22336, 23000, 27920, 29440, 32000, 32108, 34900, 36800, 40135, 43625, 44672, 46000, 55840, 64216, 69800, 73600, 80270, 87250, 89344, 92000, 111680, 128432, 139600, 147200, 160540, 174500, 184000, 200675, 223360, 256864, 279200, 321080, 349000, 368000, 401350, 446720, 513728, 558400, 642160, 698000, 736000, 802700, 1003375, 1027456, 1116800, 1284320, 1396000, 1605400, 2006750, 2054912, 2233600, 2568640, 2792000, 3210800, 4013500, 5137280, 5584000, 6421600, 8027000, 10274560, 11168000, 12843200, 16054000, 25686400, 32108000, 51372800, 64216000, 128432000, 256864000]

約数ペア:

[(1, 256864000), (2, 128432000), (4, 64216000), (5, 51372800), (8, 32108000), (10, 25686400), (16, 16054000), (20, 12843200), (23, 11168000), (25, 10274560), (32, 8027000), (40, 6421600), (46, 5584000), (50, 5137280), (64, 4013500), (80, 3210800), (92, 2792000), (100, 2568640), (115, 2233600), (125, 2054912), (128, 2006750), (160, 1605400), (184, 1396000), (200, 1284320), (230, 1116800), (250, 1027456), (256, 1003375), (320, 802700), (349, 736000), (368, 698000), (400, 642160), (460, 558400), (500, 513728), (575, 446720), (640, 401350), (698, 368000), (736, 349000), (800, 321080), (920, 279200), (1000, 256864), (1150, 223360), (1280, 200675), (1396, 184000), (1472, 174500), (1600, 160540), (1745, 147200), (1840, 139600), (2000, 128432), (2300, 111680), (2792, 92000), (2875, 89344), (2944, 87250), (3200, 80270), (3490, 73600), (3680, 69800), (4000, 64216), (4600, 55840), (5584, 46000), (5750, 44672), (5888, 43625), (6400, 40135), (6980, 36800), (7360, 34900), (8000, 32108), (8027, 32000), (8725, 29440), (9200, 27920), (11168, 23000), (11500, 22336), (13960, 18400), (14720, 17450), (16000, 16054)]