18435872

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^2\times {\mathrm{487}}^1$

素因数の和:530

約数の個数: 72

約数和(自身を含む): 45009216

約数和(自身を除く): 26573344

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 169, 182, 208, 224, 338, 364, 416, 487, 676, 728, 974, 1183, 1352, 1456, 1948, 2366, 2704, 2912, 3409, 3896, 4732, 5408, 6331, 6818, 7792, 9464, 12662, 13636, 15584, 18928, 25324, 27272, 37856, 44317, 50648, 54544, 82303, 88634, 101296, 109088, 164606, 177268, 202592, 329212, 354536, 576121, 658424, 709072, 1152242, 1316848, 1418144, 2304484, 2633696, 4608968, 9217936, 18435872]

約数ペア:

[(1, 18435872), (2, 9217936), (4, 4608968), (7, 2633696), (8, 2304484), (13, 1418144), (14, 1316848), (16, 1152242), (26, 709072), (28, 658424), (32, 576121), (52, 354536), (56, 329212), (91, 202592), (104, 177268), (112, 164606), (169, 109088), (182, 101296), (208, 88634), (224, 82303), (338, 54544), (364, 50648), (416, 44317), (487, 37856), (676, 27272), (728, 25324), (974, 18928), (1183, 15584), (1352, 13636), (1456, 12662), (1948, 9464), (2366, 7792), (2704, 6818), (2912, 6331), (3409, 5408), (3896, 4732)]