168173980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{646823}}^1$

素因数の和:646845

約数の個数: 24

約数和(自身を含む): 380332512

約数和(自身を除く): 212158532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 646823, 1293646, 2587292, 3234115, 6468230, 8408699, 12936460, 16817398, 33634796, 42043495, 84086990, 168173980]

約数ペア:

[(1, 168173980), (2, 84086990), (4, 42043495), (5, 33634796), (10, 16817398), (13, 12936460), (20, 8408699), (26, 6468230), (52, 3234115), (65, 2587292), (130, 1293646), (260, 646823)]