131427405

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{5521}}^1$

素因数の和:5578

約数の個数: 36

約数和(自身を含む): 238185948

約数和(自身を除く): 106758543

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 529, 1035, 1587, 2645, 4761, 5521, 7935, 16563, 23805, 27605, 49689, 82815, 126983, 248445, 380949, 634915, 1142847, 1904745, 2920609, 5714235, 8761827, 14603045, 26285481, 43809135, 131427405]

約数ペア:

[(1, 131427405), (3, 43809135), (5, 26285481), (9, 14603045), (15, 8761827), (23, 5714235), (45, 2920609), (69, 1904745), (115, 1142847), (207, 634915), (345, 380949), (529, 248445), (1035, 126983), (1587, 82815), (2645, 49689), (4761, 27605), (5521, 23805), (7935, 16563)]