208039715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{3761}}^1$

素因数の和:3839

約数の個数: 32

約数和(自身を含む): 288199296

約数和(自身を除く): 80159581

約数列:

[1, 5, 13, 23, 37, 65, 115, 185, 299, 481, 851, 1495, 2405, 3761, 4255, 11063, 18805, 48893, 55315, 86503, 139157, 244465, 432515, 695785, 1124539, 1809041, 3200611, 5622695, 9045205, 16003055, 41607943, 208039715]

約数ペア:

[(1, 208039715), (5, 41607943), (13, 16003055), (23, 9045205), (37, 5622695), (65, 3200611), (115, 1809041), (185, 1124539), (299, 695785), (481, 432515), (851, 244465), (1495, 139157), (2405, 86503), (3761, 55315), (4255, 48893), (11063, 18805)]