20327125

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1787}}^1$

素因数の和:1822

約数の個数: 32

約数和(自身を含む): 31239936

約数和(自身を除く): 10912811

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 125, 175, 325, 455, 875, 1625, 1787, 2275, 8935, 11375, 12509, 23231, 44675, 62545, 116155, 162617, 223375, 312725, 580775, 813085, 1563625, 2903875, 4065425, 20327125]

約数ペア:

[(1, 20327125), (5, 4065425), (7, 2903875), (13, 1563625), (25, 813085), (35, 580775), (65, 312725), (91, 223375), (125, 162617), (175, 116155), (325, 62545), (455, 44675), (875, 23231), (1625, 12509), (1787, 11375), (2275, 8935)]