81971028

素因数分解:

$2^2\times 3^4\times {\mathrm{431}}^1\times {\mathrm{587}}^1$

素因数の和:1034

約数の個数: 60

約数和(自身を含む): 215151552

約数和(自身を除く): 133180524

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 431, 587, 862, 1174, 1293, 1724, 1761, 2348, 2586, 3522, 3879, 5172, 5283, 7044, 7758, 10566, 11637, 15516, 15849, 21132, 23274, 31698, 34911, 46548, 47547, 63396, 69822, 95094, 139644, 190188, 252997, 505994, 758991, 1011988, 1517982, 2276973, 3035964, 4553946, 6830919, 9107892, 13661838, 20492757, 27323676, 40985514, 81971028]

約数ペア:

[(1, 81971028), (2, 40985514), (3, 27323676), (4, 20492757), (6, 13661838), (9, 9107892), (12, 6830919), (18, 4553946), (27, 3035964), (36, 2276973), (54, 1517982), (81, 1011988), (108, 758991), (162, 505994), (324, 252997), (431, 190188), (587, 139644), (862, 95094), (1174, 69822), (1293, 63396), (1724, 47547), (1761, 46548), (2348, 34911), (2586, 31698), (3522, 23274), (3879, 21132), (5172, 15849), (5283, 15516), (7044, 11637), (7758, 10566)]