1279767978

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{773}}^1$

素因数の和:881

約数の個数: 128

約数和(自身を含む): 3138600960

約数和(自身を除く): 1858832982

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 31, 43, 46, 54, 62, 69, 86, 93, 129, 138, 186, 207, 258, 279, 387, 414, 558, 621, 713, 773, 774, 837, 989, 1161, 1242, 1333, 1426, 1546, 1674, 1978, 2139, 2319, 2322, 2666, 2967, 3999, 4278, 4638, 5934, 6417, 6957, 7998, 8901, 11997, 12834, 13914, 17779, 17802, 19251, 20871, 23963, 23994, 26703, 30659, 33239, 35558, 35991, 38502, 41742, 47926, 53337, 53406, 61318, 66478, 71889, 71982, 91977, 99717, 106674, 143778, 160011, 183954, 199434, 215667, 275931, 299151, 320022, 431334, 480033, 551149, 551862, 598302, 647001, 764497, 827793, 897453, 960066, 1030409, 1102298, 1294002, 1528994, 1653447, 1655586, 1794906, 2060818, 2293491, 3091227, 3306894, 4586982, 4960341, 6182454, 6880473, 9273681, 9920682, 13760946, 14881023, 18547362, 20641419, 23699407, 27821043, 29762046, 41282838, 47398814, 55642086, 71098221, 142196442, 213294663, 426589326, 639883989, 1279767978]

約数ペア:

[(1, 1279767978), (2, 639883989), (3, 426589326), (6, 213294663), (9, 142196442), (18, 71098221), (23, 55642086), (27, 47398814), (31, 41282838), (43, 29762046), (46, 27821043), (54, 23699407), (62, 20641419), (69, 18547362), (86, 14881023), (93, 13760946), (129, 9920682), (138, 9273681), (186, 6880473), (207, 6182454), (258, 4960341), (279, 4586982), (387, 3306894), (414, 3091227), (558, 2293491), (621, 2060818), (713, 1794906), (773, 1655586), (774, 1653447), (837, 1528994), (989, 1294002), (1161, 1102298), (1242, 1030409), (1333, 960066), (1426, 897453), (1546, 827793), (1674, 764497), (1978, 647001), (2139, 598302), (2319, 551862), (2322, 551149), (2666, 480033), (2967, 431334), (3999, 320022), (4278, 299151), (4638, 275931), (5934, 215667), (6417, 199434), (6957, 183954), (7998, 160011), (8901, 143778), (11997, 106674), (12834, 99717), (13914, 91977), (17779, 71982), (17802, 71889), (19251, 66478), (20871, 61318), (23963, 53406), (23994, 53337), (26703, 47926), (30659, 41742), (33239, 38502), (35558, 35991)]