208020840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{953}}^1$

素因数の和:1091

約数の個数: 128

約数和(自身を含む): 667647360

約数和(自身を除く): 459626520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 107, 120, 136, 170, 204, 214, 255, 321, 340, 408, 428, 510, 535, 642, 680, 856, 953, 1020, 1070, 1284, 1605, 1819, 1906, 2040, 2140, 2568, 2859, 3210, 3638, 3812, 4280, 4765, 5457, 5718, 6420, 7276, 7624, 9095, 9530, 10914, 11436, 12840, 14295, 14552, 16201, 18190, 19060, 21828, 22872, 27285, 28590, 32402, 36380, 38120, 43656, 48603, 54570, 57180, 64804, 72760, 81005, 97206, 101971, 109140, 114360, 129608, 162010, 194412, 203942, 218280, 243015, 305913, 324020, 388824, 407884, 486030, 509855, 611826, 648040, 815768, 972060, 1019710, 1223652, 1529565, 1733507, 1944120, 2039420, 2447304, 3059130, 3467014, 4078840, 5200521, 6118260, 6934028, 8667535, 10401042, 12236520, 13868056, 17335070, 20802084, 26002605, 34670140, 41604168, 52005210, 69340280, 104010420, 208020840]

約数ペア:

[(1, 208020840), (2, 104010420), (3, 69340280), (4, 52005210), (5, 41604168), (6, 34670140), (8, 26002605), (10, 20802084), (12, 17335070), (15, 13868056), (17, 12236520), (20, 10401042), (24, 8667535), (30, 6934028), (34, 6118260), (40, 5200521), (51, 4078840), (60, 3467014), (68, 3059130), (85, 2447304), (102, 2039420), (107, 1944120), (120, 1733507), (136, 1529565), (170, 1223652), (204, 1019710), (214, 972060), (255, 815768), (321, 648040), (340, 611826), (408, 509855), (428, 486030), (510, 407884), (535, 388824), (642, 324020), (680, 305913), (856, 243015), (953, 218280), (1020, 203942), (1070, 194412), (1284, 162010), (1605, 129608), (1819, 114360), (1906, 109140), (2040, 101971), (2140, 97206), (2568, 81005), (2859, 72760), (3210, 64804), (3638, 57180), (3812, 54570), (4280, 48603), (4765, 43656), (5457, 38120), (5718, 36380), (6420, 32402), (7276, 28590), (7624, 27285), (9095, 22872), (9530, 21828), (10914, 19060), (11436, 18190), (12840, 16201), (14295, 14552)]