28142790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72161}}^1$

素因数の和:72184

約数の個数: 32

約数和(自身を含む): 72739296

約数和(自身を除く): 44596506

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72161, 144322, 216483, 360805, 432966, 721610, 938093, 1082415, 1876186, 2164830, 2814279, 4690465, 5628558, 9380930, 14071395, 28142790]

約数ペア:

[(1, 28142790), (2, 14071395), (3, 9380930), (5, 5628558), (6, 4690465), (10, 2814279), (13, 2164830), (15, 1876186), (26, 1082415), (30, 938093), (39, 721610), (65, 432966), (78, 360805), (130, 216483), (195, 144322), (390, 72161)]