140208520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:223

約数の個数: 128

約数和(自身を含む): 352719360

約数和(自身を除く): 212510840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 47, 68, 82, 85, 94, 107, 136, 164, 170, 188, 205, 214, 235, 328, 340, 376, 410, 428, 470, 535, 680, 697, 799, 820, 856, 940, 1070, 1394, 1598, 1640, 1819, 1880, 1927, 2140, 2788, 3196, 3485, 3638, 3854, 3995, 4280, 4387, 5029, 5576, 6392, 6970, 7276, 7708, 7990, 8774, 9095, 9635, 10058, 13940, 14552, 15416, 15980, 17548, 18190, 19270, 20116, 21935, 25145, 27880, 31960, 32759, 35096, 36380, 38540, 40232, 43870, 50290, 65518, 72760, 74579, 77080, 85493, 87740, 100580, 131036, 149158, 163795, 170986, 175480, 201160, 206189, 262072, 298316, 327590, 341972, 372895, 412378, 427465, 596632, 655180, 683944, 745790, 824756, 854930, 1030945, 1310360, 1491580, 1649512, 1709860, 2061890, 2983160, 3419720, 3505213, 4123780, 7010426, 8247560, 14020852, 17526065, 28041704, 35052130, 70104260, 140208520]

約数ペア:

[(1, 140208520), (2, 70104260), (4, 35052130), (5, 28041704), (8, 17526065), (10, 14020852), (17, 8247560), (20, 7010426), (34, 4123780), (40, 3505213), (41, 3419720), (47, 2983160), (68, 2061890), (82, 1709860), (85, 1649512), (94, 1491580), (107, 1310360), (136, 1030945), (164, 854930), (170, 824756), (188, 745790), (205, 683944), (214, 655180), (235, 596632), (328, 427465), (340, 412378), (376, 372895), (410, 341972), (428, 327590), (470, 298316), (535, 262072), (680, 206189), (697, 201160), (799, 175480), (820, 170986), (856, 163795), (940, 149158), (1070, 131036), (1394, 100580), (1598, 87740), (1640, 85493), (1819, 77080), (1880, 74579), (1927, 72760), (2140, 65518), (2788, 50290), (3196, 43870), (3485, 40232), (3638, 38540), (3854, 36380), (3995, 35096), (4280, 32759), (4387, 31960), (5029, 27880), (5576, 25145), (6392, 21935), (6970, 20116), (7276, 19270), (7708, 18190), (7990, 17548), (8774, 15980), (9095, 15416), (9635, 14552), (10058, 13940)]