28131945

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{307}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 46569600

約数和(自身を除く): 18437655

約数列:

[1, 3, 5, 15, 41, 123, 149, 205, 307, 447, 615, 745, 921, 1535, 2235, 4605, 6109, 12587, 18327, 30545, 37761, 45743, 62935, 91635, 137229, 188805, 228715, 686145, 1875463, 5626389, 9377315, 28131945]

約数ペア:

[(1, 28131945), (3, 9377315), (5, 5626389), (15, 1875463), (41, 686145), (123, 228715), (149, 188805), (205, 137229), (307, 91635), (447, 62935), (615, 45743), (745, 37761), (921, 30545), (1535, 18327), (2235, 12587), (4605, 6109)]