51810920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:223

約数の個数: 128

約数和(自身を含む): 141557760

約数和(自身を除く): 89746840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 47, 56, 62, 70, 94, 124, 127, 140, 155, 188, 217, 235, 248, 254, 280, 310, 329, 376, 434, 470, 508, 620, 635, 658, 868, 889, 940, 1016, 1085, 1240, 1270, 1316, 1457, 1645, 1736, 1778, 1880, 2170, 2540, 2632, 2914, 3290, 3556, 3937, 4340, 4445, 5080, 5828, 5969, 6580, 7112, 7285, 7874, 8680, 8890, 10199, 11656, 11938, 13160, 14570, 15748, 17780, 19685, 20398, 23876, 27559, 29140, 29845, 31496, 35560, 39370, 40796, 41783, 47752, 50995, 55118, 58280, 59690, 78740, 81592, 83566, 101990, 110236, 119380, 137795, 157480, 167132, 185039, 203980, 208915, 220472, 238760, 275590, 334264, 370078, 407960, 417830, 551180, 740156, 835660, 925195, 1102360, 1295273, 1480312, 1671320, 1850390, 2590546, 3700780, 5181092, 6476365, 7401560, 10362184, 12952730, 25905460, 51810920]

約数ペア:

[(1, 51810920), (2, 25905460), (4, 12952730), (5, 10362184), (7, 7401560), (8, 6476365), (10, 5181092), (14, 3700780), (20, 2590546), (28, 1850390), (31, 1671320), (35, 1480312), (40, 1295273), (47, 1102360), (56, 925195), (62, 835660), (70, 740156), (94, 551180), (124, 417830), (127, 407960), (140, 370078), (155, 334264), (188, 275590), (217, 238760), (235, 220472), (248, 208915), (254, 203980), (280, 185039), (310, 167132), (329, 157480), (376, 137795), (434, 119380), (470, 110236), (508, 101990), (620, 83566), (635, 81592), (658, 78740), (868, 59690), (889, 58280), (940, 55118), (1016, 50995), (1085, 47752), (1240, 41783), (1270, 40796), (1316, 39370), (1457, 35560), (1645, 31496), (1736, 29845), (1778, 29140), (1880, 27559), (2170, 23876), (2540, 20398), (2632, 19685), (2914, 17780), (3290, 15748), (3556, 14570), (3937, 13160), (4340, 11938), (4445, 11656), (5080, 10199), (5828, 8890), (5969, 8680), (6580, 7874), (7112, 7285)]