318120800

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{20929}}^1$

素因数の和:20968

約数の個数: 72

約数和(自身を含む): 817525800

約数和(自身を除く): 499405000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 76, 80, 95, 100, 152, 160, 190, 200, 304, 380, 400, 475, 608, 760, 800, 950, 1520, 1900, 3040, 3800, 7600, 15200, 20929, 41858, 83716, 104645, 167432, 209290, 334864, 397651, 418580, 523225, 669728, 795302, 837160, 1046450, 1590604, 1674320, 1988255, 2092900, 3181208, 3348640, 3976510, 4185800, 6362416, 7953020, 8371600, 9941275, 12724832, 15906040, 16743200, 19882550, 31812080, 39765100, 63624160, 79530200, 159060400, 318120800]

約数ペア:

[(1, 318120800), (2, 159060400), (4, 79530200), (5, 63624160), (8, 39765100), (10, 31812080), (16, 19882550), (19, 16743200), (20, 15906040), (25, 12724832), (32, 9941275), (38, 8371600), (40, 7953020), (50, 6362416), (76, 4185800), (80, 3976510), (95, 3348640), (100, 3181208), (152, 2092900), (160, 1988255), (190, 1674320), (200, 1590604), (304, 1046450), (380, 837160), (400, 795302), (475, 669728), (608, 523225), (760, 418580), (800, 397651), (950, 334864), (1520, 209290), (1900, 167432), (3040, 104645), (3800, 83716), (7600, 41858), (15200, 20929)]