81917056

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2591}}^1$

素因数の和:2637

約数の個数: 64

約数和(自身を含む): 185068800

約数和(自身を除く): 103151744

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 208, 247, 304, 416, 494, 608, 832, 988, 1216, 1664, 1976, 2432, 2591, 3952, 5182, 7904, 10364, 15808, 20728, 31616, 33683, 41456, 49229, 67366, 82912, 98458, 134732, 165824, 196916, 269464, 331648, 393832, 538928, 639977, 787664, 1077856, 1279954, 1575328, 2155712, 2559908, 3150656, 4311424, 5119816, 6301312, 10239632, 20479264, 40958528, 81917056]

約数ペア:

[(1, 81917056), (2, 40958528), (4, 20479264), (8, 10239632), (13, 6301312), (16, 5119816), (19, 4311424), (26, 3150656), (32, 2559908), (38, 2155712), (52, 1575328), (64, 1279954), (76, 1077856), (104, 787664), (128, 639977), (152, 538928), (208, 393832), (247, 331648), (304, 269464), (416, 196916), (494, 165824), (608, 134732), (832, 98458), (988, 82912), (1216, 67366), (1664, 49229), (1976, 41456), (2432, 33683), (2591, 31616), (3952, 20728), (5182, 15808), (7904, 10364)]