8241820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1$

素因数の和:115

約数の個数: 72

約数和(自身を含む): 19509840

約数和(自身を除く): 11268020

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 41, 46, 76, 82, 92, 95, 115, 164, 190, 205, 230, 380, 410, 437, 460, 529, 779, 820, 874, 943, 1058, 1558, 1748, 1886, 2116, 2185, 2645, 3116, 3772, 3895, 4370, 4715, 5290, 7790, 8740, 9430, 10051, 10580, 15580, 17917, 18860, 20102, 21689, 35834, 40204, 43378, 50255, 71668, 86756, 89585, 100510, 108445, 179170, 201020, 216890, 358340, 412091, 433780, 824182, 1648364, 2060455, 4120910, 8241820]

約数ペア:

[(1, 8241820), (2, 4120910), (4, 2060455), (5, 1648364), (10, 824182), (19, 433780), (20, 412091), (23, 358340), (38, 216890), (41, 201020), (46, 179170), (76, 108445), (82, 100510), (92, 89585), (95, 86756), (115, 71668), (164, 50255), (190, 43378), (205, 40204), (230, 35834), (380, 21689), (410, 20102), (437, 18860), (460, 17917), (529, 15580), (779, 10580), (820, 10051), (874, 9430), (943, 8740), (1058, 7790), (1558, 5290), (1748, 4715), (1886, 4370), (2116, 3895), (2185, 3772), (2645, 3116)]