31291688

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{619}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 60264000

約数和(自身を除く): 28972312

約数列:

[1, 2, 4, 8, 71, 89, 142, 178, 284, 356, 568, 619, 712, 1238, 2476, 4952, 6319, 12638, 25276, 43949, 50552, 55091, 87898, 110182, 175796, 220364, 351592, 440728, 3911461, 7822922, 15645844, 31291688]

約数ペア:

[(1, 31291688), (2, 15645844), (4, 7822922), (8, 3911461), (71, 440728), (89, 351592), (142, 220364), (178, 175796), (284, 110182), (356, 87898), (568, 55091), (619, 50552), (712, 43949), (1238, 25276), (2476, 12638), (4952, 6319)]