20921844680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{86297}}^1$

素因数の和:86367

約数の個数: 128

約数和(自身を含む): 55921104000

約数和(自身を除く): 34999259320

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 29, 38, 40, 44, 55, 58, 76, 88, 95, 110, 116, 145, 152, 190, 209, 220, 232, 290, 319, 380, 418, 440, 551, 580, 638, 760, 836, 1045, 1102, 1160, 1276, 1595, 1672, 2090, 2204, 2552, 2755, 3190, 4180, 4408, 5510, 6061, 6380, 8360, 11020, 12122, 12760, 22040, 24244, 30305, 48488, 60610, 86297, 121220, 172594, 242440, 345188, 431485, 690376, 862970, 949267, 1639643, 1725940, 1898534, 2502613, 3279286, 3451880, 3797068, 4746335, 5005226, 6558572, 7594136, 8198215, 9492670, 10010452, 12513065, 13117144, 16396430, 18036073, 18985340, 20020904, 25026130, 27528743, 32792860, 36072146, 37970680, 47549647, 50052260, 55057486, 65585720, 72144292, 90180365, 95099294, 100104520, 110114972, 137643715, 144288584, 180360730, 190198588, 220229944, 237748235, 275287430, 360721460, 380397176, 475496470, 523046117, 550574860, 721442920, 950992940, 1046092234, 1101149720, 1901985880, 2092184468, 2615230585, 4184368936, 5230461170, 10460922340, 20921844680]

約数ペア:

[(1, 20921844680), (2, 10460922340), (4, 5230461170), (5, 4184368936), (8, 2615230585), (10, 2092184468), (11, 1901985880), (19, 1101149720), (20, 1046092234), (22, 950992940), (29, 721442920), (38, 550574860), (40, 523046117), (44, 475496470), (55, 380397176), (58, 360721460), (76, 275287430), (88, 237748235), (95, 220229944), (110, 190198588), (116, 180360730), (145, 144288584), (152, 137643715), (190, 110114972), (209, 100104520), (220, 95099294), (232, 90180365), (290, 72144292), (319, 65585720), (380, 55057486), (418, 50052260), (440, 47549647), (551, 37970680), (580, 36072146), (638, 32792860), (760, 27528743), (836, 25026130), (1045, 20020904), (1102, 18985340), (1160, 18036073), (1276, 16396430), (1595, 13117144), (1672, 12513065), (2090, 10010452), (2204, 9492670), (2552, 8198215), (2755, 7594136), (3190, 6558572), (4180, 5005226), (4408, 4746335), (5510, 3797068), (6061, 3451880), (6380, 3279286), (8360, 2502613), (11020, 1898534), (12122, 1725940), (12760, 1639643), (22040, 949267), (24244, 862970), (30305, 690376), (48488, 431485), (60610, 345188), (86297, 242440), (121220, 172594)]