18740120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:193

約数の個数: 128

約数和(自身を含む): 53084160

約数和(自身を除く): 34344040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 31, 34, 35, 40, 56, 62, 68, 70, 85, 119, 124, 127, 136, 140, 155, 170, 217, 238, 248, 254, 280, 310, 340, 434, 476, 508, 527, 595, 620, 635, 680, 868, 889, 952, 1016, 1054, 1085, 1190, 1240, 1270, 1736, 1778, 2108, 2159, 2170, 2380, 2540, 2635, 3556, 3689, 3937, 4216, 4318, 4340, 4445, 4760, 5080, 5270, 7112, 7378, 7874, 8636, 8680, 8890, 10540, 10795, 14756, 15113, 15748, 17272, 17780, 18445, 19685, 21080, 21590, 27559, 29512, 30226, 31496, 35560, 36890, 39370, 43180, 55118, 60452, 66929, 73780, 75565, 78740, 86360, 110236, 120904, 133858, 137795, 147560, 151130, 157480, 220472, 267716, 275590, 302260, 334645, 468503, 535432, 551180, 604520, 669290, 937006, 1102360, 1338580, 1874012, 2342515, 2677160, 3748024, 4685030, 9370060, 18740120]

約数ペア:

[(1, 18740120), (2, 9370060), (4, 4685030), (5, 3748024), (7, 2677160), (8, 2342515), (10, 1874012), (14, 1338580), (17, 1102360), (20, 937006), (28, 669290), (31, 604520), (34, 551180), (35, 535432), (40, 468503), (56, 334645), (62, 302260), (68, 275590), (70, 267716), (85, 220472), (119, 157480), (124, 151130), (127, 147560), (136, 137795), (140, 133858), (155, 120904), (170, 110236), (217, 86360), (238, 78740), (248, 75565), (254, 73780), (280, 66929), (310, 60452), (340, 55118), (434, 43180), (476, 39370), (508, 36890), (527, 35560), (595, 31496), (620, 30226), (635, 29512), (680, 27559), (868, 21590), (889, 21080), (952, 19685), (1016, 18445), (1054, 17780), (1085, 17272), (1190, 15748), (1240, 15113), (1270, 14756), (1736, 10795), (1778, 10540), (2108, 8890), (2159, 8680), (2170, 8636), (2380, 7874), (2540, 7378), (2635, 7112), (3556, 5270), (3689, 5080), (3937, 4760), (4216, 4445), (4318, 4340)]