131371520

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{7331}}^1$

素因数の和:7361

約数の個数: 80

約数和(自身を含む): 360030528

約数和(自身を除く): 228659008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1792, 2240, 2560, 3584, 4480, 7331, 8960, 14662, 17920, 29324, 36655, 51317, 58648, 73310, 102634, 117296, 146620, 205268, 234592, 256585, 293240, 410536, 469184, 513170, 586480, 821072, 938368, 1026340, 1172960, 1642144, 1876736, 2052680, 2345920, 3284288, 3753472, 4105360, 4691840, 6568576, 8210720, 9383680, 13137152, 16421440, 18767360, 26274304, 32842880, 65685760, 131371520]

約数ペア:

[(1, 131371520), (2, 65685760), (4, 32842880), (5, 26274304), (7, 18767360), (8, 16421440), (10, 13137152), (14, 9383680), (16, 8210720), (20, 6568576), (28, 4691840), (32, 4105360), (35, 3753472), (40, 3284288), (56, 2345920), (64, 2052680), (70, 1876736), (80, 1642144), (112, 1172960), (128, 1026340), (140, 938368), (160, 821072), (224, 586480), (256, 513170), (280, 469184), (320, 410536), (448, 293240), (512, 256585), (560, 234592), (640, 205268), (896, 146620), (1120, 117296), (1280, 102634), (1792, 73310), (2240, 58648), (2560, 51317), (3584, 36655), (4480, 29324), (7331, 17920), (8960, 14662)]