25952720

素因数分解:

$2^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{809}}^1$

素因数の和:1223

約数の個数: 40

約数和(自身を含む): 60565320

約数和(自身を除く): 34612600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 401, 802, 809, 1604, 1618, 2005, 3208, 3236, 4010, 4045, 6416, 6472, 8020, 8090, 12944, 16040, 16180, 32080, 32360, 64720, 324409, 648818, 1297636, 1622045, 2595272, 3244090, 5190544, 6488180, 12976360, 25952720]

約数ペア:

[(1, 25952720), (2, 12976360), (4, 6488180), (5, 5190544), (8, 3244090), (10, 2595272), (16, 1622045), (20, 1297636), (40, 648818), (80, 324409), (401, 64720), (802, 32360), (809, 32080), (1604, 16180), (1618, 16040), (2005, 12944), (3208, 8090), (3236, 8020), (4010, 6472), (4045, 6416)]