261485345

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{1321}}^1$

素因数の和:1457

約数の個数: 32

約数和(自身を含む): 354084480

約数和(自身を除く): 92599135

約数列:

[1, 5, 11, 55, 59, 61, 295, 305, 649, 671, 1321, 3245, 3355, 3599, 6605, 14531, 17995, 39589, 72655, 77939, 80581, 197945, 389695, 402905, 857329, 886391, 4286645, 4431955, 4754279, 23771395, 52297069, 261485345]

約数ペア:

[(1, 261485345), (5, 52297069), (11, 23771395), (55, 4754279), (59, 4431955), (61, 4286645), (295, 886391), (305, 857329), (649, 402905), (671, 389695), (1321, 197945), (3245, 80581), (3355, 77939), (3599, 72655), (6605, 39589), (14531, 17995)]