18121180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^2$

素因数の和:116

約数の個数: 108

約数和(自身を含む): 49498344

約数和(自身を除く): 31377164

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 41, 44, 49, 55, 70, 77, 82, 98, 110, 140, 154, 164, 196, 205, 220, 245, 287, 308, 385, 410, 451, 490, 539, 574, 770, 820, 902, 980, 1078, 1148, 1435, 1540, 1681, 1804, 2009, 2156, 2255, 2695, 2870, 3157, 3362, 4018, 4510, 5390, 5740, 6314, 6724, 8036, 8405, 9020, 10045, 10780, 11767, 12628, 15785, 16810, 18491, 20090, 22099, 23534, 31570, 33620, 36982, 40180, 44198, 47068, 58835, 63140, 73964, 82369, 88396, 92455, 110495, 117670, 129437, 164738, 184910, 220990, 235340, 258874, 329476, 369820, 411845, 441980, 517748, 647185, 823690, 906059, 1294370, 1647380, 1812118, 2588740, 3624236, 4530295, 9060590, 18121180]

約数ペア:

[(1, 18121180), (2, 9060590), (4, 4530295), (5, 3624236), (7, 2588740), (10, 1812118), (11, 1647380), (14, 1294370), (20, 906059), (22, 823690), (28, 647185), (35, 517748), (41, 441980), (44, 411845), (49, 369820), (55, 329476), (70, 258874), (77, 235340), (82, 220990), (98, 184910), (110, 164738), (140, 129437), (154, 117670), (164, 110495), (196, 92455), (205, 88396), (220, 82369), (245, 73964), (287, 63140), (308, 58835), (385, 47068), (410, 44198), (451, 40180), (490, 36982), (539, 33620), (574, 31570), (770, 23534), (820, 22099), (902, 20090), (980, 18491), (1078, 16810), (1148, 15785), (1435, 12628), (1540, 11767), (1681, 10780), (1804, 10045), (2009, 9020), (2156, 8405), (2255, 8036), (2695, 6724), (2870, 6314), (3157, 5740), (3362, 5390), (4018, 4510)]