287371520

素因数分解:

$2^8\times 5^1\times {\mathrm{347}}^1\times {\mathrm{647}}^1$

素因数の和:1015

約数の個数: 72

約数和(自身を含む): 691395264

約数和(自身を除く): 404023744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 347, 640, 647, 694, 1280, 1294, 1388, 1735, 2588, 2776, 3235, 3470, 5176, 5552, 6470, 6940, 10352, 11104, 12940, 13880, 20704, 22208, 25880, 27760, 41408, 44416, 51760, 55520, 82816, 88832, 103520, 111040, 165632, 207040, 222080, 224509, 414080, 444160, 449018, 828160, 898036, 1122545, 1796072, 2245090, 3592144, 4490180, 7184288, 8980360, 14368576, 17960720, 28737152, 35921440, 57474304, 71842880, 143685760, 287371520]

約数ペア:

[(1, 287371520), (2, 143685760), (4, 71842880), (5, 57474304), (8, 35921440), (10, 28737152), (16, 17960720), (20, 14368576), (32, 8980360), (40, 7184288), (64, 4490180), (80, 3592144), (128, 2245090), (160, 1796072), (256, 1122545), (320, 898036), (347, 828160), (640, 449018), (647, 444160), (694, 414080), (1280, 224509), (1294, 222080), (1388, 207040), (1735, 165632), (2588, 111040), (2776, 103520), (3235, 88832), (3470, 82816), (5176, 55520), (5552, 51760), (6470, 44416), (6940, 41408), (10352, 27760), (11104, 25880), (12940, 22208), (13880, 20704)]