251765910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{379}}^1$

素因数の和:475

約数の個数: 144

約数和(自身を含む): 733234320

約数和(自身を除く): 481468410

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 61, 66, 90, 99, 110, 121, 122, 165, 183, 198, 242, 305, 330, 363, 366, 379, 495, 549, 605, 610, 671, 726, 758, 915, 990, 1089, 1098, 1137, 1210, 1342, 1815, 1830, 1895, 2013, 2178, 2274, 2745, 3355, 3411, 3630, 3790, 4026, 4169, 5445, 5490, 5685, 6039, 6710, 6822, 7381, 8338, 10065, 10890, 11370, 12078, 12507, 14762, 17055, 20130, 20845, 22143, 23119, 25014, 30195, 34110, 36905, 37521, 41690, 44286, 45859, 46238, 60390, 62535, 66429, 69357, 73810, 75042, 91718, 110715, 115595, 125070, 132858, 137577, 138714, 187605, 208071, 221430, 229295, 231190, 254309, 275154, 332145, 346785, 375210, 412731, 416142, 458590, 508618, 664290, 687885, 693570, 762927, 825462, 1040355, 1271545, 1375770, 1525854, 2063655, 2080710, 2288781, 2543090, 2797399, 3814635, 4127310, 4577562, 5594798, 7629270, 8392197, 11443905, 13986995, 16784394, 22887810, 25176591, 27973990, 41960985, 50353182, 83921970, 125882955, 251765910]

約数ペア:

[(1, 251765910), (2, 125882955), (3, 83921970), (5, 50353182), (6, 41960985), (9, 27973990), (10, 25176591), (11, 22887810), (15, 16784394), (18, 13986995), (22, 11443905), (30, 8392197), (33, 7629270), (45, 5594798), (55, 4577562), (61, 4127310), (66, 3814635), (90, 2797399), (99, 2543090), (110, 2288781), (121, 2080710), (122, 2063655), (165, 1525854), (183, 1375770), (198, 1271545), (242, 1040355), (305, 825462), (330, 762927), (363, 693570), (366, 687885), (379, 664290), (495, 508618), (549, 458590), (605, 416142), (610, 412731), (671, 375210), (726, 346785), (758, 332145), (915, 275154), (990, 254309), (1089, 231190), (1098, 229295), (1137, 221430), (1210, 208071), (1342, 187605), (1815, 138714), (1830, 137577), (1895, 132858), (2013, 125070), (2178, 115595), (2274, 110715), (2745, 91718), (3355, 75042), (3411, 73810), (3630, 69357), (3790, 66429), (4026, 62535), (4169, 60390), (5445, 46238), (5490, 45859), (5685, 44286), (6039, 41690), (6710, 37521), (6822, 36905), (7381, 34110), (8338, 30195), (10065, 25014), (10890, 23119), (11370, 22143), (12078, 20845), (12507, 20130), (14762, 17055)]