28671125

素因数分解:

$5^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:211

約数の個数: 48

約数和(自身を含む): 43250688

約数和(自身を除く): 14579563

約数列:

[1, 5, 7, 25, 31, 35, 49, 125, 151, 155, 175, 217, 245, 755, 775, 875, 1057, 1085, 1225, 1519, 3775, 3875, 4681, 5285, 5425, 6125, 7399, 7595, 18875, 23405, 26425, 27125, 32767, 36995, 37975, 117025, 132125, 163835, 184975, 189875, 229369, 585125, 819175, 924875, 1146845, 4095875, 5734225, 28671125]

約数ペア:

[(1, 28671125), (5, 5734225), (7, 4095875), (25, 1146845), (31, 924875), (35, 819175), (49, 585125), (125, 229369), (151, 189875), (155, 184975), (175, 163835), (217, 132125), (245, 117025), (755, 37975), (775, 36995), (875, 32767), (1057, 27125), (1085, 26425), (1225, 23405), (1519, 18875), (3775, 7595), (3875, 7399), (4681, 6125), (5285, 5425)]