4020400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2$

素因数の和:83

約数の個数: 90

約数和(自身を含む): 10628660

約数和(自身を除く): 6608260

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 25, 38, 40, 46, 50, 76, 80, 92, 95, 100, 115, 152, 184, 190, 200, 230, 304, 368, 380, 400, 437, 460, 475, 529, 575, 760, 874, 920, 950, 1058, 1150, 1520, 1748, 1840, 1900, 2116, 2185, 2300, 2645, 3496, 3800, 4232, 4370, 4600, 5290, 6992, 7600, 8464, 8740, 9200, 10051, 10580, 10925, 13225, 17480, 20102, 21160, 21850, 26450, 34960, 40204, 42320, 43700, 50255, 52900, 80408, 87400, 100510, 105800, 160816, 174800, 201020, 211600, 251275, 402040, 502550, 804080, 1005100, 2010200, 4020400]

約数ペア:

[(1, 4020400), (2, 2010200), (4, 1005100), (5, 804080), (8, 502550), (10, 402040), (16, 251275), (19, 211600), (20, 201020), (23, 174800), (25, 160816), (38, 105800), (40, 100510), (46, 87400), (50, 80408), (76, 52900), (80, 50255), (92, 43700), (95, 42320), (100, 40204), (115, 34960), (152, 26450), (184, 21850), (190, 21160), (200, 20102), (230, 17480), (304, 13225), (368, 10925), (380, 10580), (400, 10051), (437, 9200), (460, 8740), (475, 8464), (529, 7600), (575, 6992), (760, 5290), (874, 4600), (920, 4370), (950, 4232), (1058, 3800), (1150, 3496), (1520, 2645), (1748, 2300), (1840, 2185), (1900, 2116)]