21585280

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1163}}^1$

素因数の和:1211

約数の個数: 64

約数和(自身を含む): 53427600

約数和(自身を除く): 31842320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 464, 580, 640, 928, 1160, 1163, 1856, 2320, 2326, 3712, 4640, 4652, 5815, 9280, 9304, 11630, 18560, 18608, 23260, 33727, 37216, 46520, 67454, 74432, 93040, 134908, 148864, 168635, 186080, 269816, 337270, 372160, 539632, 674540, 744320, 1079264, 1349080, 2158528, 2698160, 4317056, 5396320, 10792640, 21585280]

約数ペア:

[(1, 21585280), (2, 10792640), (4, 5396320), (5, 4317056), (8, 2698160), (10, 2158528), (16, 1349080), (20, 1079264), (29, 744320), (32, 674540), (40, 539632), (58, 372160), (64, 337270), (80, 269816), (116, 186080), (128, 168635), (145, 148864), (160, 134908), (232, 93040), (290, 74432), (320, 67454), (464, 46520), (580, 37216), (640, 33727), (928, 23260), (1160, 18608), (1163, 18560), (1856, 11630), (2320, 9304), (2326, 9280), (3712, 5815), (4640, 4652)]