20188012805

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{443}}^1\times {\mathrm{541}}^1\times {\mathrm{991}}^1$

素因数の和:1997

約数の個数: 32

約数和(自身を含む): 25782064128

約数和(自身を除く): 5594051323

約数列:

[1, 5, 17, 85, 443, 541, 991, 2215, 2705, 4955, 7531, 9197, 16847, 37655, 45985, 84235, 239663, 439013, 536131, 1198315, 2195065, 2680655, 4074271, 7463221, 9114227, 20371355, 37316105, 45571135, 237506033, 1187530165, 4037602561, 20188012805]

約数ペア:

[(1, 20188012805), (5, 4037602561), (17, 1187530165), (85, 237506033), (443, 45571135), (541, 37316105), (991, 20371355), (2215, 9114227), (2705, 7463221), (4955, 4074271), (7531, 2680655), (9197, 2195065), (16847, 1198315), (37655, 536131), (45985, 439013), (84235, 239663)]