284879980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{251}}^1$

素因数の和:356

約数の個数: 144

約数和(自身を含む): 765773568

約数和(自身を除く): 480893588

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 67, 70, 77, 110, 121, 134, 140, 154, 220, 242, 251, 268, 308, 335, 385, 469, 484, 502, 605, 670, 737, 770, 847, 938, 1004, 1210, 1255, 1340, 1474, 1540, 1694, 1757, 1876, 2345, 2420, 2510, 2761, 2948, 3388, 3514, 3685, 4235, 4690, 5020, 5159, 5522, 7028, 7370, 8107, 8470, 8785, 9380, 10318, 11044, 13805, 14740, 16214, 16817, 16940, 17570, 19327, 20636, 25795, 27610, 30371, 32428, 33634, 35140, 38654, 40535, 51590, 55220, 56749, 60742, 67268, 77308, 81070, 84085, 96635, 103180, 113498, 117719, 121484, 151855, 162140, 168170, 184987, 193270, 212597, 226996, 235438, 283745, 303710, 336340, 369974, 386540, 425194, 470876, 567490, 588595, 607420, 739948, 850388, 924935, 1062985, 1134980, 1177190, 1294909, 1849870, 2034857, 2125970, 2354380, 2589818, 3699740, 4069714, 4251940, 5179636, 6474545, 8139428, 10174285, 12949090, 14243999, 20348570, 25898180, 28487998, 40697140, 56975996, 71219995, 142439990, 284879980]

約数ペア:

[(1, 284879980), (2, 142439990), (4, 71219995), (5, 56975996), (7, 40697140), (10, 28487998), (11, 25898180), (14, 20348570), (20, 14243999), (22, 12949090), (28, 10174285), (35, 8139428), (44, 6474545), (55, 5179636), (67, 4251940), (70, 4069714), (77, 3699740), (110, 2589818), (121, 2354380), (134, 2125970), (140, 2034857), (154, 1849870), (220, 1294909), (242, 1177190), (251, 1134980), (268, 1062985), (308, 924935), (335, 850388), (385, 739948), (469, 607420), (484, 588595), (502, 567490), (605, 470876), (670, 425194), (737, 386540), (770, 369974), (847, 336340), (938, 303710), (1004, 283745), (1210, 235438), (1255, 226996), (1340, 212597), (1474, 193270), (1540, 184987), (1694, 168170), (1757, 162140), (1876, 151855), (2345, 121484), (2420, 117719), (2510, 113498), (2761, 103180), (2948, 96635), (3388, 84085), (3514, 81070), (3685, 77308), (4235, 67268), (4690, 60742), (5020, 56749), (5159, 55220), (5522, 51590), (7028, 40535), (7370, 38654), (8107, 35140), (8470, 33634), (8785, 32428), (9380, 30371), (10318, 27610), (11044, 25795), (13805, 20636), (14740, 19327), (16214, 17570), (16817, 16940)]