3499990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 7246800

約数和(自身を除く): 3746810

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 109, 130, 169, 190, 218, 247, 338, 494, 545, 845, 1090, 1235, 1417, 1690, 2071, 2470, 2834, 3211, 4142, 6422, 7085, 10355, 14170, 16055, 18421, 20710, 26923, 32110, 36842, 53846, 92105, 134615, 184210, 269230, 349999, 699998, 1749995, 3499990]

約数ペア:

[(1, 3499990), (2, 1749995), (5, 699998), (10, 349999), (13, 269230), (19, 184210), (26, 134615), (38, 92105), (65, 53846), (95, 36842), (109, 32110), (130, 26923), (169, 20710), (190, 18421), (218, 16055), (247, 14170), (338, 10355), (494, 7085), (545, 6422), (845, 4142), (1090, 3211), (1235, 2834), (1417, 2470), (1690, 2071)]