256735488

素因数分解:

$2^8\times 3^1\times {\mathrm{353}}^1\times {\mathrm{947}}^1$

素因数の和:1319

約数の個数: 72

約数和(自身を含む): 685950048

約数和(自身を除く): 429214560

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 353, 384, 706, 768, 947, 1059, 1412, 1894, 2118, 2824, 2841, 3788, 4236, 5648, 5682, 7576, 8472, 11296, 11364, 15152, 16944, 22592, 22728, 30304, 33888, 45184, 45456, 60608, 67776, 90368, 90912, 121216, 135552, 181824, 242432, 271104, 334291, 363648, 668582, 727296, 1002873, 1337164, 2005746, 2674328, 4011492, 5348656, 8022984, 10697312, 16045968, 21394624, 32091936, 42789248, 64183872, 85578496, 128367744, 256735488]

約数ペア:

[(1, 256735488), (2, 128367744), (3, 85578496), (4, 64183872), (6, 42789248), (8, 32091936), (12, 21394624), (16, 16045968), (24, 10697312), (32, 8022984), (48, 5348656), (64, 4011492), (96, 2674328), (128, 2005746), (192, 1337164), (256, 1002873), (353, 727296), (384, 668582), (706, 363648), (768, 334291), (947, 271104), (1059, 242432), (1412, 181824), (1894, 135552), (2118, 121216), (2824, 90912), (2841, 90368), (3788, 67776), (4236, 60608), (5648, 45456), (5682, 45184), (7576, 33888), (8472, 30304), (11296, 22728), (11364, 22592), (15152, 16944)]