205386740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{4093}}^1$

素因数の和:4308

約数の個数: 48

約数和(自身を含む): 467010768

約数和(自身を除く): 261624028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 193, 260, 386, 772, 965, 1930, 2509, 3860, 4093, 5018, 8186, 10036, 12545, 16372, 20465, 25090, 40930, 50180, 53209, 81860, 106418, 212836, 266045, 532090, 789949, 1064180, 1579898, 3159796, 3949745, 7899490, 10269337, 15798980, 20538674, 41077348, 51346685, 102693370, 205386740]

約数ペア:

[(1, 205386740), (2, 102693370), (4, 51346685), (5, 41077348), (10, 20538674), (13, 15798980), (20, 10269337), (26, 7899490), (52, 3949745), (65, 3159796), (130, 1579898), (193, 1064180), (260, 789949), (386, 532090), (772, 266045), (965, 212836), (1930, 106418), (2509, 81860), (3860, 53209), (4093, 50180), (5018, 40930), (8186, 25090), (10036, 20465), (12545, 16372)]