138213080

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{8017}}^1$

素因数の和:8459

約数の個数: 32

約数和(自身を含む): 311739840

約数和(自身を除く): 173526760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4310, 8017, 8620, 16034, 17240, 32068, 40085, 64136, 80170, 160340, 320680, 3455327, 6910654, 13821308, 17276635, 27642616, 34553270, 69106540, 138213080]

約数ペア:

[(1, 138213080), (2, 69106540), (4, 34553270), (5, 27642616), (8, 17276635), (10, 13821308), (20, 6910654), (40, 3455327), (431, 320680), (862, 160340), (1724, 80170), (2155, 64136), (3448, 40085), (4310, 32068), (8017, 17240), (8620, 16034)]