20956680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2531}}^1$

素因数の和:2571

約数の個数: 96

約数和(自身を含む): 71098560

約数和(自身を除く): 50141880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 2070, 2531, 2760, 4140, 5062, 7593, 8280, 10124, 12655, 15186, 20248, 22779, 25310, 30372, 37965, 45558, 50620, 58213, 60744, 75930, 91116, 101240, 113895, 116426, 151860, 174639, 182232, 227790, 232852, 291065, 303720, 349278, 455580, 465704, 523917, 582130, 698556, 873195, 911160, 1047834, 1164260, 1397112, 1746390, 2095668, 2328520, 2619585, 3492780, 4191336, 5239170, 6985560, 10478340, 20956680]

約数ペア:

[(1, 20956680), (2, 10478340), (3, 6985560), (4, 5239170), (5, 4191336), (6, 3492780), (8, 2619585), (9, 2328520), (10, 2095668), (12, 1746390), (15, 1397112), (18, 1164260), (20, 1047834), (23, 911160), (24, 873195), (30, 698556), (36, 582130), (40, 523917), (45, 465704), (46, 455580), (60, 349278), (69, 303720), (72, 291065), (90, 232852), (92, 227790), (115, 182232), (120, 174639), (138, 151860), (180, 116426), (184, 113895), (207, 101240), (230, 91116), (276, 75930), (345, 60744), (360, 58213), (414, 50620), (460, 45558), (552, 37965), (690, 30372), (828, 25310), (920, 22779), (1035, 20248), (1380, 15186), (1656, 12655), (2070, 10124), (2531, 8280), (2760, 7593), (4140, 5062)]