28080975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{347}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 50746752

約数和(自身を除く): 22665777

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 83, 195, 249, 325, 347, 415, 975, 1041, 1079, 1245, 1735, 2075, 3237, 4511, 5205, 5395, 6225, 8675, 13533, 16185, 22555, 26025, 26975, 28801, 67665, 80925, 86403, 112775, 144005, 338325, 374413, 432015, 720025, 1123239, 1872065, 2160075, 5616195, 9360325, 28080975]

約数ペア:

[(1, 28080975), (3, 9360325), (5, 5616195), (13, 2160075), (15, 1872065), (25, 1123239), (39, 720025), (65, 432015), (75, 374413), (83, 338325), (195, 144005), (249, 112775), (325, 86403), (347, 80925), (415, 67665), (975, 28801), (1041, 26975), (1079, 26025), (1245, 22555), (1735, 16185), (2075, 13533), (3237, 8675), (4511, 6225), (5205, 5395)]