205124855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^2$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 290918880

約数和(自身を除く): 85794025

約数列:

[1, 5, 13, 19, 37, 65, 67, 95, 185, 247, 335, 481, 703, 871, 1235, 1273, 2405, 2479, 3515, 4355, 4489, 6365, 9139, 12395, 16549, 22445, 32227, 45695, 47101, 58357, 82745, 85291, 161135, 166093, 235505, 291785, 426455, 612313, 830465, 1108783, 2159209, 3061565, 3155767, 5543915, 10796045, 15778835, 41024971, 205124855]

約数ペア:

[(1, 205124855), (5, 41024971), (13, 15778835), (19, 10796045), (37, 5543915), (65, 3155767), (67, 3061565), (95, 2159209), (185, 1108783), (247, 830465), (335, 612313), (481, 426455), (703, 291785), (871, 235505), (1235, 166093), (1273, 161135), (2405, 85291), (2479, 82745), (3515, 58357), (4355, 47101), (4489, 45695), (6365, 32227), (9139, 22445), (12395, 16549)]