28805985

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1201}}^1$

素因数の和:1266

約数の個数: 48

約数和(自身を含む): 55128528

約数和(自身を除く): 26322543

約数列:

[1, 3, 5, 9, 13, 15, 39, 41, 45, 65, 117, 123, 195, 205, 369, 533, 585, 615, 1201, 1599, 1845, 2665, 3603, 4797, 6005, 7995, 10809, 15613, 18015, 23985, 46839, 49241, 54045, 78065, 140517, 147723, 234195, 246205, 443169, 640133, 702585, 738615, 1920399, 2215845, 3200665, 5761197, 9601995, 28805985]

約数ペア:

[(1, 28805985), (3, 9601995), (5, 5761197), (9, 3200665), (13, 2215845), (15, 1920399), (39, 738615), (41, 702585), (45, 640133), (65, 443169), (117, 246205), (123, 234195), (195, 147723), (205, 140517), (369, 78065), (533, 54045), (585, 49241), (615, 46839), (1201, 23985), (1599, 18015), (1845, 15613), (2665, 10809), (3603, 7995), (4797, 6005)]