51215560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1$

素因数の和:247

約数の個数: 128

約数和(自身を含む): 137168640

約数和(自身を除く): 85953080

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 41, 44, 55, 68, 82, 85, 88, 110, 136, 164, 167, 170, 187, 205, 220, 328, 334, 340, 374, 410, 440, 451, 668, 680, 697, 748, 820, 835, 902, 935, 1336, 1394, 1496, 1640, 1670, 1804, 1837, 1870, 2255, 2788, 2839, 3340, 3485, 3608, 3674, 3740, 4510, 5576, 5678, 6680, 6847, 6970, 7348, 7480, 7667, 9020, 9185, 11356, 13694, 13940, 14195, 14696, 15334, 18040, 18370, 22712, 27388, 27880, 28390, 30668, 31229, 34235, 36740, 38335, 54776, 56780, 61336, 62458, 68470, 73480, 75317, 76670, 113560, 116399, 124916, 136940, 150634, 153340, 156145, 232798, 249832, 273880, 301268, 306680, 312290, 376585, 465596, 581995, 602536, 624580, 753170, 931192, 1163990, 1249160, 1280389, 1506340, 2327980, 2560778, 3012680, 4655960, 5121556, 6401945, 10243112, 12803890, 25607780, 51215560]

約数ペア:

[(1, 51215560), (2, 25607780), (4, 12803890), (5, 10243112), (8, 6401945), (10, 5121556), (11, 4655960), (17, 3012680), (20, 2560778), (22, 2327980), (34, 1506340), (40, 1280389), (41, 1249160), (44, 1163990), (55, 931192), (68, 753170), (82, 624580), (85, 602536), (88, 581995), (110, 465596), (136, 376585), (164, 312290), (167, 306680), (170, 301268), (187, 273880), (205, 249832), (220, 232798), (328, 156145), (334, 153340), (340, 150634), (374, 136940), (410, 124916), (440, 116399), (451, 113560), (668, 76670), (680, 75317), (697, 73480), (748, 68470), (820, 62458), (835, 61336), (902, 56780), (935, 54776), (1336, 38335), (1394, 36740), (1496, 34235), (1640, 31229), (1670, 30668), (1804, 28390), (1837, 27880), (1870, 27388), (2255, 22712), (2788, 18370), (2839, 18040), (3340, 15334), (3485, 14696), (3608, 14195), (3674, 13940), (3740, 13694), (4510, 11356), (5576, 9185), (5678, 9020), (6680, 7667), (6847, 7480), (6970, 7348)]