81375195

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:396

約数の個数: 64

約数和(自身を含む): 151580160

約数和(自身を除く): 70204965

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 101, 165, 209, 257, 285, 303, 505, 627, 771, 1045, 1111, 1285, 1515, 1919, 2827, 3135, 3333, 3855, 4883, 5555, 5757, 8481, 9595, 14135, 14649, 16665, 21109, 24415, 25957, 28785, 42405, 53713, 63327, 73245, 77871, 105545, 129785, 161139, 268565, 285527, 316635, 389355, 493183, 805695, 856581, 1427635, 1479549, 2465915, 4282905, 5425013, 7397745, 16275039, 27125065, 81375195]

約数ペア:

[(1, 81375195), (3, 27125065), (5, 16275039), (11, 7397745), (15, 5425013), (19, 4282905), (33, 2465915), (55, 1479549), (57, 1427635), (95, 856581), (101, 805695), (165, 493183), (209, 389355), (257, 316635), (285, 285527), (303, 268565), (505, 161139), (627, 129785), (771, 105545), (1045, 77871), (1111, 73245), (1285, 63327), (1515, 53713), (1919, 42405), (2827, 28785), (3135, 25957), (3333, 24415), (3855, 21109), (4883, 16665), (5555, 14649), (5757, 14135), (8481, 9595)]