8640640

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{587}}^1$

素因数の和:629

約数の個数: 64

約数和(自身を含む): 21591360

約数和(自身を除く): 12950720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 587, 640, 736, 920, 1174, 1472, 1840, 2348, 2935, 2944, 3680, 4696, 5870, 7360, 9392, 11740, 13501, 14720, 18784, 23480, 27002, 37568, 46960, 54004, 67505, 75136, 93920, 108008, 135010, 187840, 216016, 270020, 375680, 432032, 540040, 864064, 1080080, 1728128, 2160160, 4320320, 8640640]

約数ペア:

[(1, 8640640), (2, 4320320), (4, 2160160), (5, 1728128), (8, 1080080), (10, 864064), (16, 540040), (20, 432032), (23, 375680), (32, 270020), (40, 216016), (46, 187840), (64, 135010), (80, 108008), (92, 93920), (115, 75136), (128, 67505), (160, 54004), (184, 46960), (230, 37568), (320, 27002), (368, 23480), (460, 18784), (587, 14720), (640, 13501), (736, 11740), (920, 9392), (1174, 7360), (1472, 5870), (1840, 4696), (2348, 3680), (2935, 2944)]