20709240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:357

約数の個数: 128

約数和(自身を含む): 67737600

約数和(自身を除く): 47028360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 31, 38, 40, 57, 60, 62, 76, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 248, 285, 293, 310, 372, 380, 456, 465, 570, 586, 589, 620, 744, 760, 879, 930, 1140, 1172, 1178, 1240, 1465, 1758, 1767, 1860, 2280, 2344, 2356, 2930, 2945, 3516, 3534, 3720, 4395, 4712, 5567, 5860, 5890, 7032, 7068, 8790, 8835, 9083, 11134, 11720, 11780, 14136, 16701, 17580, 17670, 18166, 22268, 23560, 27249, 27835, 33402, 35160, 35340, 36332, 44536, 45415, 54498, 55670, 66804, 70680, 72664, 83505, 90830, 108996, 111340, 133608, 136245, 167010, 172577, 181660, 217992, 222680, 272490, 334020, 345154, 363320, 517731, 544980, 668040, 690308, 862885, 1035462, 1089960, 1380616, 1725770, 2070924, 2588655, 3451540, 4141848, 5177310, 6903080, 10354620, 20709240]

約数ペア:

[(1, 20709240), (2, 10354620), (3, 6903080), (4, 5177310), (5, 4141848), (6, 3451540), (8, 2588655), (10, 2070924), (12, 1725770), (15, 1380616), (19, 1089960), (20, 1035462), (24, 862885), (30, 690308), (31, 668040), (38, 544980), (40, 517731), (57, 363320), (60, 345154), (62, 334020), (76, 272490), (93, 222680), (95, 217992), (114, 181660), (120, 172577), (124, 167010), (152, 136245), (155, 133608), (186, 111340), (190, 108996), (228, 90830), (248, 83505), (285, 72664), (293, 70680), (310, 66804), (372, 55670), (380, 54498), (456, 45415), (465, 44536), (570, 36332), (586, 35340), (589, 35160), (620, 33402), (744, 27835), (760, 27249), (879, 23560), (930, 22268), (1140, 18166), (1172, 17670), (1178, 17580), (1240, 16701), (1465, 14136), (1758, 11780), (1767, 11720), (1860, 11134), (2280, 9083), (2344, 8835), (2356, 8790), (2930, 7068), (2945, 7032), (3516, 5890), (3534, 5860), (3720, 5567), (4395, 4712)]