81917568

素因数分解:

$2^7\times 3^4\times {\mathrm{7901}}^1$

素因数の和:7927

約数の個数: 80

約数和(自身を含む): 243816210

約数和(自身を除く): 161898642

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 128, 144, 162, 192, 216, 288, 324, 384, 432, 576, 648, 864, 1152, 1296, 1728, 2592, 3456, 5184, 7901, 10368, 15802, 23703, 31604, 47406, 63208, 71109, 94812, 126416, 142218, 189624, 213327, 252832, 284436, 379248, 426654, 505664, 568872, 639981, 758496, 853308, 1011328, 1137744, 1279962, 1516992, 1706616, 2275488, 2559924, 3033984, 3413232, 4550976, 5119848, 6826464, 9101952, 10239696, 13652928, 20479392, 27305856, 40958784, 81917568]

約数ペア:

[(1, 81917568), (2, 40958784), (3, 27305856), (4, 20479392), (6, 13652928), (8, 10239696), (9, 9101952), (12, 6826464), (16, 5119848), (18, 4550976), (24, 3413232), (27, 3033984), (32, 2559924), (36, 2275488), (48, 1706616), (54, 1516992), (64, 1279962), (72, 1137744), (81, 1011328), (96, 853308), (108, 758496), (128, 639981), (144, 568872), (162, 505664), (192, 426654), (216, 379248), (288, 284436), (324, 252832), (384, 213327), (432, 189624), (576, 142218), (648, 126416), (864, 94812), (1152, 71109), (1296, 63208), (1728, 47406), (2592, 31604), (3456, 23703), (5184, 15802), (7901, 10368)]