257858040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{11491}}^1$

素因数の和:11533

約数の個数: 128

約数和(自身を含む): 893617920

約数和(自身を除く): 635759880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 20, 22, 24, 30, 33, 34, 40, 44, 51, 55, 60, 66, 68, 85, 88, 102, 110, 120, 132, 136, 165, 170, 187, 204, 220, 255, 264, 330, 340, 374, 408, 440, 510, 561, 660, 680, 748, 935, 1020, 1122, 1320, 1496, 1870, 2040, 2244, 2805, 3740, 4488, 5610, 7480, 11220, 11491, 22440, 22982, 34473, 45964, 57455, 68946, 91928, 114910, 126401, 137892, 172365, 195347, 229820, 252802, 275784, 344730, 379203, 390694, 459640, 505604, 586041, 632005, 689460, 758406, 781388, 976735, 1011208, 1172082, 1264010, 1378920, 1516812, 1562776, 1896015, 1953470, 2148817, 2344164, 2528020, 2930205, 3033624, 3792030, 3906940, 4297634, 4688328, 5056040, 5860410, 6446451, 7584060, 7813880, 8595268, 10744085, 11720820, 12892902, 15168120, 17190536, 21488170, 23441640, 25785804, 32232255, 42976340, 51571608, 64464510, 85952680, 128929020, 257858040]

約数ペア:

[(1, 257858040), (2, 128929020), (3, 85952680), (4, 64464510), (5, 51571608), (6, 42976340), (8, 32232255), (10, 25785804), (11, 23441640), (12, 21488170), (15, 17190536), (17, 15168120), (20, 12892902), (22, 11720820), (24, 10744085), (30, 8595268), (33, 7813880), (34, 7584060), (40, 6446451), (44, 5860410), (51, 5056040), (55, 4688328), (60, 4297634), (66, 3906940), (68, 3792030), (85, 3033624), (88, 2930205), (102, 2528020), (110, 2344164), (120, 2148817), (132, 1953470), (136, 1896015), (165, 1562776), (170, 1516812), (187, 1378920), (204, 1264010), (220, 1172082), (255, 1011208), (264, 976735), (330, 781388), (340, 758406), (374, 689460), (408, 632005), (440, 586041), (510, 505604), (561, 459640), (660, 390694), (680, 379203), (748, 344730), (935, 275784), (1020, 252802), (1122, 229820), (1320, 195347), (1496, 172365), (1870, 137892), (2040, 126401), (2244, 114910), (2805, 91928), (3740, 68946), (4488, 57455), (5610, 45964), (7480, 34473), (11220, 22982), (11491, 22440)]