15420720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:227

約数の個数: 160

約数和(自身を含む): 55853568

約数和(自身を除く): 40432848

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 67, 70, 80, 84, 105, 112, 120, 134, 137, 140, 168, 201, 210, 240, 268, 274, 280, 335, 336, 402, 411, 420, 469, 536, 548, 560, 670, 685, 804, 822, 840, 938, 959, 1005, 1072, 1096, 1340, 1370, 1407, 1608, 1644, 1680, 1876, 1918, 2010, 2055, 2192, 2345, 2680, 2740, 2814, 2877, 3216, 3288, 3752, 3836, 4020, 4110, 4690, 4795, 5360, 5480, 5628, 5754, 6576, 7035, 7504, 7672, 8040, 8220, 9179, 9380, 9590, 10960, 11256, 11508, 14070, 14385, 15344, 16080, 16440, 18358, 18760, 19180, 22512, 23016, 27537, 28140, 28770, 32880, 36716, 37520, 38360, 45895, 46032, 55074, 56280, 57540, 64253, 73432, 76720, 91790, 110148, 112560, 115080, 128506, 137685, 146864, 183580, 192759, 220296, 230160, 257012, 275370, 321265, 367160, 385518, 440592, 514024, 550740, 642530, 734320, 771036, 963795, 1028048, 1101480, 1285060, 1542072, 1927590, 2202960, 2570120, 3084144, 3855180, 5140240, 7710360, 15420720]

約数ペア:

[(1, 15420720), (2, 7710360), (3, 5140240), (4, 3855180), (5, 3084144), (6, 2570120), (7, 2202960), (8, 1927590), (10, 1542072), (12, 1285060), (14, 1101480), (15, 1028048), (16, 963795), (20, 771036), (21, 734320), (24, 642530), (28, 550740), (30, 514024), (35, 440592), (40, 385518), (42, 367160), (48, 321265), (56, 275370), (60, 257012), (67, 230160), (70, 220296), (80, 192759), (84, 183580), (105, 146864), (112, 137685), (120, 128506), (134, 115080), (137, 112560), (140, 110148), (168, 91790), (201, 76720), (210, 73432), (240, 64253), (268, 57540), (274, 56280), (280, 55074), (335, 46032), (336, 45895), (402, 38360), (411, 37520), (420, 36716), (469, 32880), (536, 28770), (548, 28140), (560, 27537), (670, 23016), (685, 22512), (804, 19180), (822, 18760), (840, 18358), (938, 16440), (959, 16080), (1005, 15344), (1072, 14385), (1096, 14070), (1340, 11508), (1370, 11256), (1407, 10960), (1608, 9590), (1644, 9380), (1680, 9179), (1876, 8220), (1918, 8040), (2010, 7672), (2055, 7504), (2192, 7035), (2345, 6576), (2680, 5754), (2740, 5628), (2814, 5480), (2877, 5360), (3216, 4795), (3288, 4690), (3752, 4110), (3836, 4020)]