397345280

素因数分解:

$2^9\times 5^1\times {\mathrm{269}}^1\times {\mathrm{577}}^1$

素因数の和:869

約数の個数: 80

約数和(自身を含む): 957896280

約数和(自身を除く): 560551000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 269, 320, 512, 538, 577, 640, 1076, 1154, 1280, 1345, 2152, 2308, 2560, 2690, 2885, 4304, 4616, 5380, 5770, 8608, 9232, 10760, 11540, 17216, 18464, 21520, 23080, 34432, 36928, 43040, 46160, 68864, 73856, 86080, 92320, 137728, 147712, 155213, 172160, 184640, 295424, 310426, 344320, 369280, 620852, 688640, 738560, 776065, 1241704, 1477120, 1552130, 2483408, 3104260, 4966816, 6208520, 9933632, 12417040, 19867264, 24834080, 39734528, 49668160, 79469056, 99336320, 198672640, 397345280]

約数ペア:

[(1, 397345280), (2, 198672640), (4, 99336320), (5, 79469056), (8, 49668160), (10, 39734528), (16, 24834080), (20, 19867264), (32, 12417040), (40, 9933632), (64, 6208520), (80, 4966816), (128, 3104260), (160, 2483408), (256, 1552130), (269, 1477120), (320, 1241704), (512, 776065), (538, 738560), (577, 688640), (640, 620852), (1076, 369280), (1154, 344320), (1280, 310426), (1345, 295424), (2152, 184640), (2308, 172160), (2560, 155213), (2690, 147712), (2885, 137728), (4304, 92320), (4616, 86080), (5380, 73856), (5770, 68864), (8608, 46160), (9232, 43040), (10760, 36928), (11540, 34432), (17216, 23080), (18464, 21520)]