28165020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36109}}^1$

素因数の和:36134

約数の個数: 48

約数和(自身を含む): 84930720

約数和(自身を除く): 56765700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 36109, 72218, 108327, 144436, 180545, 216654, 361090, 433308, 469417, 541635, 722180, 938834, 1083270, 1408251, 1877668, 2166540, 2347085, 2816502, 4694170, 5633004, 7041255, 9388340, 14082510, 28165020]

約数ペア:

[(1, 28165020), (2, 14082510), (3, 9388340), (4, 7041255), (5, 5633004), (6, 4694170), (10, 2816502), (12, 2347085), (13, 2166540), (15, 1877668), (20, 1408251), (26, 1083270), (30, 938834), (39, 722180), (52, 541635), (60, 469417), (65, 433308), (78, 361090), (130, 216654), (156, 180545), (195, 144436), (260, 108327), (390, 72218), (780, 36109)]