30878415

素因数分解:

$3^4\times 5^1\times {\mathrm{76243}}^1$

素因数の和:76260

約数の個数: 20

約数和(自身を含む): 55353144

約数和(自身を除く): 24474729

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 76243, 228729, 381215, 686187, 1143645, 2058561, 3430935, 6175683, 10292805, 30878415]

約数ペア:

[(1, 30878415), (3, 10292805), (5, 6175683), (9, 3430935), (15, 2058561), (27, 1143645), (45, 686187), (81, 381215), (135, 228729), (405, 76243)]