20689968

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{467}}^1$

素因数の和:562

約数の個数: 80

約数和(自身を含む): 58496256

約数和(自身を除く): 37806288

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 71, 78, 104, 142, 156, 208, 213, 284, 312, 426, 467, 568, 624, 852, 923, 934, 1136, 1401, 1704, 1846, 1868, 2769, 2802, 3408, 3692, 3736, 5538, 5604, 6071, 7384, 7472, 11076, 11208, 12142, 14768, 18213, 22152, 22416, 24284, 33157, 36426, 44304, 48568, 66314, 72852, 97136, 99471, 132628, 145704, 198942, 265256, 291408, 397884, 431041, 530512, 795768, 862082, 1293123, 1591536, 1724164, 2586246, 3448328, 5172492, 6896656, 10344984, 20689968]

約数ペア:

[(1, 20689968), (2, 10344984), (3, 6896656), (4, 5172492), (6, 3448328), (8, 2586246), (12, 1724164), (13, 1591536), (16, 1293123), (24, 862082), (26, 795768), (39, 530512), (48, 431041), (52, 397884), (71, 291408), (78, 265256), (104, 198942), (142, 145704), (156, 132628), (208, 99471), (213, 97136), (284, 72852), (312, 66314), (426, 48568), (467, 44304), (568, 36426), (624, 33157), (852, 24284), (923, 22416), (934, 22152), (1136, 18213), (1401, 14768), (1704, 12142), (1846, 11208), (1868, 11076), (2769, 7472), (2802, 7384), (3408, 6071), (3692, 5604), (3736, 5538)]