90858380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{1321}}^1$

素因数の和:1530

約数の個数: 48

約数和(自身を含む): 202107360

約数和(自身を除く): 111248980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 181, 190, 362, 380, 724, 905, 1321, 1810, 2642, 3439, 3620, 5284, 6605, 6878, 13210, 13756, 17195, 25099, 26420, 34390, 50198, 68780, 100396, 125495, 239101, 250990, 478202, 501980, 956404, 1195505, 2391010, 4542919, 4782020, 9085838, 18171676, 22714595, 45429190, 90858380]

約数ペア:

[(1, 90858380), (2, 45429190), (4, 22714595), (5, 18171676), (10, 9085838), (19, 4782020), (20, 4542919), (38, 2391010), (76, 1195505), (95, 956404), (181, 501980), (190, 478202), (362, 250990), (380, 239101), (724, 125495), (905, 100396), (1321, 68780), (1810, 50198), (2642, 34390), (3439, 26420), (3620, 25099), (5284, 17195), (6605, 13756), (6878, 13210)]