257456940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:288

約数の個数: 192

約数和(自身を含む): 823689216

約数和(自身を除く): 566232276

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 26, 30, 39, 46, 52, 60, 65, 69, 78, 92, 113, 115, 127, 130, 138, 156, 195, 226, 230, 254, 260, 276, 299, 339, 345, 381, 390, 452, 460, 508, 565, 598, 635, 678, 690, 762, 780, 897, 1130, 1196, 1270, 1356, 1380, 1469, 1495, 1524, 1651, 1695, 1794, 1905, 2260, 2540, 2599, 2921, 2938, 2990, 3302, 3390, 3588, 3810, 4407, 4485, 4953, 5198, 5842, 5876, 5980, 6604, 6780, 7345, 7620, 7797, 8255, 8763, 8814, 8970, 9906, 10396, 11684, 12995, 14351, 14605, 14690, 15594, 16510, 17526, 17628, 17940, 19812, 22035, 24765, 25990, 28702, 29210, 29380, 31188, 33020, 33787, 35052, 37973, 38985, 43053, 43815, 44070, 49530, 51980, 57404, 58420, 67574, 71755, 75946, 77970, 86106, 87630, 88140, 99060, 101361, 113919, 135148, 143510, 151892, 155940, 168935, 172212, 175260, 186563, 189865, 202722, 215265, 227838, 287020, 330073, 337870, 373126, 379730, 405444, 430530, 455676, 506805, 559689, 569595, 660146, 675740, 746252, 759460, 861060, 932815, 990219, 1013610, 1119378, 1139190, 1320292, 1650365, 1865630, 1980438, 2027220, 2238756, 2278380, 2798445, 3300730, 3731260, 3960876, 4290949, 4951095, 5596890, 6601460, 8581898, 9902190, 11193780, 12872847, 17163796, 19804380, 21454745, 25745694, 42909490, 51491388, 64364235, 85818980, 128728470, 257456940]

約数ペア:

[(1, 257456940), (2, 128728470), (3, 85818980), (4, 64364235), (5, 51491388), (6, 42909490), (10, 25745694), (12, 21454745), (13, 19804380), (15, 17163796), (20, 12872847), (23, 11193780), (26, 9902190), (30, 8581898), (39, 6601460), (46, 5596890), (52, 4951095), (60, 4290949), (65, 3960876), (69, 3731260), (78, 3300730), (92, 2798445), (113, 2278380), (115, 2238756), (127, 2027220), (130, 1980438), (138, 1865630), (156, 1650365), (195, 1320292), (226, 1139190), (230, 1119378), (254, 1013610), (260, 990219), (276, 932815), (299, 861060), (339, 759460), (345, 746252), (381, 675740), (390, 660146), (452, 569595), (460, 559689), (508, 506805), (565, 455676), (598, 430530), (635, 405444), (678, 379730), (690, 373126), (762, 337870), (780, 330073), (897, 287020), (1130, 227838), (1196, 215265), (1270, 202722), (1356, 189865), (1380, 186563), (1469, 175260), (1495, 172212), (1524, 168935), (1651, 155940), (1695, 151892), (1794, 143510), (1905, 135148), (2260, 113919), (2540, 101361), (2599, 99060), (2921, 88140), (2938, 87630), (2990, 86106), (3302, 77970), (3390, 75946), (3588, 71755), (3810, 67574), (4407, 58420), (4485, 57404), (4953, 51980), (5198, 49530), (5842, 44070), (5876, 43815), (5980, 43053), (6604, 38985), (6780, 37973), (7345, 35052), (7620, 33787), (7797, 33020), (8255, 31188), (8763, 29380), (8814, 29210), (8970, 28702), (9906, 25990), (10396, 24765), (11684, 22035), (12995, 19812), (14351, 17940), (14605, 17628), (14690, 17526), (15594, 16510)]