777730805

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 969408000

約数和(自身を除く): 191677195

約数列:

[1, 5, 71, 101, 109, 199, 355, 505, 545, 995, 7171, 7739, 11009, 14129, 20099, 21691, 35855, 38695, 55045, 70645, 100495, 108455, 781639, 1427029, 1540061, 2190791, 3908195, 7135145, 7700305, 10953955, 155546161, 777730805]

約数ペア:

[(1, 777730805), (5, 155546161), (71, 10953955), (101, 7700305), (109, 7135145), (199, 3908195), (355, 2190791), (505, 1540061), (545, 1427029), (995, 781639), (7171, 108455), (7739, 100495), (11009, 70645), (14129, 55045), (20099, 38695), (21691, 35855)]