161707960

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{11261}}^1$

素因数の和:11631

約数の個数: 32

約数和(自身を含む): 364888800

約数和(自身を除く): 203180840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 718, 1436, 1795, 2872, 3590, 7180, 11261, 14360, 22522, 45044, 56305, 90088, 112610, 225220, 450440, 4042699, 8085398, 16170796, 20213495, 32341592, 40426990, 80853980, 161707960]

約数ペア:

[(1, 161707960), (2, 80853980), (4, 40426990), (5, 32341592), (8, 20213495), (10, 16170796), (20, 8085398), (40, 4042699), (359, 450440), (718, 225220), (1436, 112610), (1795, 90088), (2872, 56305), (3590, 45044), (7180, 22522), (11261, 14360)]