160940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 364560

約数和(自身を除く): 203620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 619, 1238, 2476, 3095, 6190, 8047, 12380, 16094, 32188, 40235, 80470, 160940]

約数ペア:

[(1, 160940), (2, 80470), (4, 40235), (5, 32188), (10, 16094), (13, 12380), (20, 8047), (26, 6190), (52, 3095), (65, 2476), (130, 1238), (260, 619)]