18685728

素因数分解:

$2^5\times 3^8\times {\mathrm{89}}^1$

素因数の和:123

約数の個数: 108

約数和(自身を含む): 55798470

約数和(自身を除く): 37112742

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 81, 89, 96, 108, 144, 162, 178, 216, 243, 267, 288, 324, 356, 432, 486, 534, 648, 712, 729, 801, 864, 972, 1068, 1296, 1424, 1458, 1602, 1944, 2136, 2187, 2403, 2592, 2848, 2916, 3204, 3888, 4272, 4374, 4806, 5832, 6408, 6561, 7209, 7776, 8544, 8748, 9612, 11664, 12816, 13122, 14418, 17496, 19224, 21627, 23328, 25632, 26244, 28836, 34992, 38448, 43254, 52488, 57672, 64881, 69984, 76896, 86508, 104976, 115344, 129762, 173016, 194643, 209952, 230688, 259524, 346032, 389286, 519048, 583929, 692064, 778572, 1038096, 1167858, 1557144, 2076192, 2335716, 3114288, 4671432, 6228576, 9342864, 18685728]

約数ペア:

[(1, 18685728), (2, 9342864), (3, 6228576), (4, 4671432), (6, 3114288), (8, 2335716), (9, 2076192), (12, 1557144), (16, 1167858), (18, 1038096), (24, 778572), (27, 692064), (32, 583929), (36, 519048), (48, 389286), (54, 346032), (72, 259524), (81, 230688), (89, 209952), (96, 194643), (108, 173016), (144, 129762), (162, 115344), (178, 104976), (216, 86508), (243, 76896), (267, 69984), (288, 64881), (324, 57672), (356, 52488), (432, 43254), (486, 38448), (534, 34992), (648, 28836), (712, 26244), (729, 25632), (801, 23328), (864, 21627), (972, 19224), (1068, 17496), (1296, 14418), (1424, 13122), (1458, 12816), (1602, 11664), (1944, 9612), (2136, 8748), (2187, 8544), (2403, 7776), (2592, 7209), (2848, 6561), (2916, 6408), (3204, 5832), (3888, 4806), (4272, 4374)]