81317040

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{499}}^1$

素因数の和:619

約数の個数: 160

約数和(自身を含む): 291648000

約数和(自身を除く): 210330960

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, 70, 80, 84, 97, 105, 112, 120, 140, 168, 194, 210, 240, 280, 291, 336, 388, 420, 485, 499, 560, 582, 679, 776, 840, 970, 998, 1164, 1358, 1455, 1497, 1552, 1680, 1940, 1996, 2037, 2328, 2495, 2716, 2910, 2994, 3395, 3493, 3880, 3992, 4074, 4656, 4990, 5432, 5820, 5988, 6790, 6986, 7485, 7760, 7984, 8148, 9980, 10185, 10479, 10864, 11640, 11976, 13580, 13972, 14970, 16296, 17465, 19960, 20370, 20958, 23280, 23952, 27160, 27944, 29940, 32592, 34930, 39920, 40740, 41916, 48403, 52395, 54320, 55888, 59880, 69860, 81480, 83832, 96806, 104790, 119760, 139720, 145209, 162960, 167664, 193612, 209580, 242015, 279440, 290418, 338821, 387224, 419160, 484030, 580836, 677642, 726045, 774448, 838320, 968060, 1016463, 1161672, 1355284, 1452090, 1694105, 1936120, 2032926, 2323344, 2710568, 2904180, 3388210, 3872240, 4065852, 5082315, 5421136, 5808360, 6776420, 8131704, 10164630, 11616720, 13552840, 16263408, 20329260, 27105680, 40658520, 81317040]

約数ペア:

[(1, 81317040), (2, 40658520), (3, 27105680), (4, 20329260), (5, 16263408), (6, 13552840), (7, 11616720), (8, 10164630), (10, 8131704), (12, 6776420), (14, 5808360), (15, 5421136), (16, 5082315), (20, 4065852), (21, 3872240), (24, 3388210), (28, 2904180), (30, 2710568), (35, 2323344), (40, 2032926), (42, 1936120), (48, 1694105), (56, 1452090), (60, 1355284), (70, 1161672), (80, 1016463), (84, 968060), (97, 838320), (105, 774448), (112, 726045), (120, 677642), (140, 580836), (168, 484030), (194, 419160), (210, 387224), (240, 338821), (280, 290418), (291, 279440), (336, 242015), (388, 209580), (420, 193612), (485, 167664), (499, 162960), (560, 145209), (582, 139720), (679, 119760), (776, 104790), (840, 96806), (970, 83832), (998, 81480), (1164, 69860), (1358, 59880), (1455, 55888), (1497, 54320), (1552, 52395), (1680, 48403), (1940, 41916), (1996, 40740), (2037, 39920), (2328, 34930), (2495, 32592), (2716, 29940), (2910, 27944), (2994, 27160), (3395, 23952), (3493, 23280), (3880, 20958), (3992, 20370), (4074, 19960), (4656, 17465), (4990, 16296), (5432, 14970), (5820, 13972), (5988, 13580), (6790, 11976), (6986, 11640), (7485, 10864), (7760, 10479), (7984, 10185), (8148, 9980)]