21933280

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^2\times {\mathrm{163}}^1$

素因数の和:236

約数の個数: 72

約数和(自身を含む): 53995032

約数和(自身を除く): 32061752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 163, 232, 290, 326, 464, 580, 652, 815, 841, 928, 1160, 1304, 1630, 1682, 2320, 2608, 3260, 3364, 4205, 4640, 4727, 5216, 6520, 6728, 8410, 9454, 13040, 13456, 16820, 18908, 23635, 26080, 26912, 33640, 37816, 47270, 67280, 75632, 94540, 134560, 137083, 151264, 189080, 274166, 378160, 548332, 685415, 756320, 1096664, 1370830, 2193328, 2741660, 4386656, 5483320, 10966640, 21933280]

約数ペア:

[(1, 21933280), (2, 10966640), (4, 5483320), (5, 4386656), (8, 2741660), (10, 2193328), (16, 1370830), (20, 1096664), (29, 756320), (32, 685415), (40, 548332), (58, 378160), (80, 274166), (116, 189080), (145, 151264), (160, 137083), (163, 134560), (232, 94540), (290, 75632), (326, 67280), (464, 47270), (580, 37816), (652, 33640), (815, 26912), (841, 26080), (928, 23635), (1160, 18908), (1304, 16820), (1630, 13456), (1682, 13040), (2320, 9454), (2608, 8410), (3260, 6728), (3364, 6520), (4205, 5216), (4640, 4727)]