21781414920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{167911}}^1$

素因数の和:167995

約数の個数: 128

約数和(自身を含む): 69636464640

約数和(自身を除く): 47855049720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 47, 60, 69, 92, 94, 115, 120, 138, 141, 184, 188, 230, 235, 276, 282, 345, 376, 460, 470, 552, 564, 690, 705, 920, 940, 1081, 1128, 1380, 1410, 1880, 2162, 2760, 2820, 3243, 4324, 5405, 5640, 6486, 8648, 10810, 12972, 16215, 21620, 25944, 32430, 43240, 64860, 129720, 167911, 335822, 503733, 671644, 839555, 1007466, 1343288, 1679110, 2014932, 2518665, 3358220, 3861953, 4029864, 5037330, 6716440, 7723906, 7891817, 10074660, 11585859, 15447812, 15783634, 19309765, 20149320, 23171718, 23675451, 30895624, 31567268, 38619530, 39459085, 46343436, 47350902, 57929295, 63134536, 77239060, 78918170, 92686872, 94701804, 115858590, 118377255, 154478120, 157836340, 181511791, 189403608, 231717180, 236754510, 315672680, 363023582, 463434360, 473509020, 544535373, 726047164, 907558955, 947018040, 1089070746, 1452094328, 1815117910, 2178141492, 2722676865, 3630235820, 4356282984, 5445353730, 7260471640, 10890707460, 21781414920]

約数ペア:

[(1, 21781414920), (2, 10890707460), (3, 7260471640), (4, 5445353730), (5, 4356282984), (6, 3630235820), (8, 2722676865), (10, 2178141492), (12, 1815117910), (15, 1452094328), (20, 1089070746), (23, 947018040), (24, 907558955), (30, 726047164), (40, 544535373), (46, 473509020), (47, 463434360), (60, 363023582), (69, 315672680), (92, 236754510), (94, 231717180), (115, 189403608), (120, 181511791), (138, 157836340), (141, 154478120), (184, 118377255), (188, 115858590), (230, 94701804), (235, 92686872), (276, 78918170), (282, 77239060), (345, 63134536), (376, 57929295), (460, 47350902), (470, 46343436), (552, 39459085), (564, 38619530), (690, 31567268), (705, 30895624), (920, 23675451), (940, 23171718), (1081, 20149320), (1128, 19309765), (1380, 15783634), (1410, 15447812), (1880, 11585859), (2162, 10074660), (2760, 7891817), (2820, 7723906), (3243, 6716440), (4324, 5037330), (5405, 4029864), (5640, 3861953), (6486, 3358220), (8648, 2518665), (10810, 2014932), (12972, 1679110), (16215, 1343288), (21620, 1007466), (25944, 839555), (32430, 671644), (43240, 503733), (64860, 335822), (129720, 167911)]