280123812

素因数分解:

$2^2\times 3^3\times {\mathrm{31}}^2\times {\mathrm{2699}}^1$

素因数の和:2774

約数の個数: 72

約数和(自身を含む): 750708000

約数和(自身を除く): 470584188

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 62, 93, 108, 124, 186, 279, 372, 558, 837, 961, 1116, 1674, 1922, 2699, 2883, 3348, 3844, 5398, 5766, 8097, 8649, 10796, 11532, 16194, 17298, 24291, 25947, 32388, 34596, 48582, 51894, 72873, 83669, 97164, 103788, 145746, 167338, 251007, 291492, 334676, 502014, 753021, 1004028, 1506042, 2259063, 2593739, 3012084, 4518126, 5187478, 7781217, 9036252, 10374956, 15562434, 23343651, 31124868, 46687302, 70030953, 93374604, 140061906, 280123812]

約数ペア:

[(1, 280123812), (2, 140061906), (3, 93374604), (4, 70030953), (6, 46687302), (9, 31124868), (12, 23343651), (18, 15562434), (27, 10374956), (31, 9036252), (36, 7781217), (54, 5187478), (62, 4518126), (93, 3012084), (108, 2593739), (124, 2259063), (186, 1506042), (279, 1004028), (372, 753021), (558, 502014), (837, 334676), (961, 291492), (1116, 251007), (1674, 167338), (1922, 145746), (2699, 103788), (2883, 97164), (3348, 83669), (3844, 72873), (5398, 51894), (5766, 48582), (8097, 34596), (8649, 32388), (10796, 25947), (11532, 24291), (16194, 17298)]