20940270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53693}}^1$

素因数の和:53716

約数の個数: 32

約数和(自身を含む): 54123552

約数和(自身を除く): 33183282

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53693, 107386, 161079, 268465, 322158, 536930, 698009, 805395, 1396018, 1610790, 2094027, 3490045, 4188054, 6980090, 10470135, 20940270]

約数ペア:

[(1, 20940270), (2, 10470135), (3, 6980090), (5, 4188054), (6, 3490045), (10, 2094027), (13, 1610790), (15, 1396018), (26, 805395), (30, 698009), (39, 536930), (65, 322158), (78, 268465), (130, 161079), (195, 107386), (390, 53693)]