16818880

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^2\times {\mathrm{311}}^1$

素因数の和:354

約数の個数: 84

約数和(自身を含む): 43507152

約数和(自身を除く): 26688272

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 169, 208, 260, 311, 320, 338, 416, 520, 622, 676, 832, 845, 1040, 1244, 1352, 1555, 1690, 2080, 2488, 2704, 3110, 3380, 4043, 4160, 4976, 5408, 6220, 6760, 8086, 9952, 10816, 12440, 13520, 16172, 19904, 20215, 24880, 27040, 32344, 40430, 49760, 52559, 54080, 64688, 80860, 99520, 105118, 129376, 161720, 210236, 258752, 262795, 323440, 420472, 525590, 646880, 840944, 1051180, 1293760, 1681888, 2102360, 3363776, 4204720, 8409440, 16818880]

約数ペア:

[(1, 16818880), (2, 8409440), (4, 4204720), (5, 3363776), (8, 2102360), (10, 1681888), (13, 1293760), (16, 1051180), (20, 840944), (26, 646880), (32, 525590), (40, 420472), (52, 323440), (64, 262795), (65, 258752), (80, 210236), (104, 161720), (130, 129376), (160, 105118), (169, 99520), (208, 80860), (260, 64688), (311, 54080), (320, 52559), (338, 49760), (416, 40430), (520, 32344), (622, 27040), (676, 24880), (832, 20215), (845, 19904), (1040, 16172), (1244, 13520), (1352, 12440), (1555, 10816), (1690, 9952), (2080, 8086), (2488, 6760), (2704, 6220), (3110, 5408), (3380, 4976), (4043, 4160)]