278494452

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{971}}^1$

素因数の和:1269

約数の個数: 72

約数和(自身を含む): 730259712

約数和(自身を除く): 451765260

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 257, 279, 372, 514, 558, 771, 971, 1028, 1116, 1542, 1942, 2313, 2913, 3084, 3884, 4626, 5826, 7967, 8739, 9252, 11652, 15934, 17478, 23901, 30101, 31868, 34956, 47802, 60202, 71703, 90303, 95604, 120404, 143406, 180606, 249547, 270909, 286812, 361212, 499094, 541818, 748641, 998188, 1083636, 1497282, 2245923, 2994564, 4491846, 7735957, 8983692, 15471914, 23207871, 30943828, 46415742, 69623613, 92831484, 139247226, 278494452]

約数ペア:

[(1, 278494452), (2, 139247226), (3, 92831484), (4, 69623613), (6, 46415742), (9, 30943828), (12, 23207871), (18, 15471914), (31, 8983692), (36, 7735957), (62, 4491846), (93, 2994564), (124, 2245923), (186, 1497282), (257, 1083636), (279, 998188), (372, 748641), (514, 541818), (558, 499094), (771, 361212), (971, 286812), (1028, 270909), (1116, 249547), (1542, 180606), (1942, 143406), (2313, 120404), (2913, 95604), (3084, 90303), (3884, 71703), (4626, 60202), (5826, 47802), (7967, 34956), (8739, 31868), (9252, 30101), (11652, 23901), (15934, 17478)]