26821375

素因数分解:

$5^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{151}}^1$

素因数の和:209

約数の個数: 48

約数和(自身を含む): 40547520

約数和(自身を除く): 13726145

約数列:

[1, 5, 7, 25, 29, 35, 49, 125, 145, 151, 175, 203, 245, 725, 755, 875, 1015, 1057, 1225, 1421, 3625, 3775, 4379, 5075, 5285, 6125, 7105, 7399, 18875, 21895, 25375, 26425, 30653, 35525, 36995, 109475, 132125, 153265, 177625, 184975, 214571, 547375, 766325, 924875, 1072855, 3831625, 5364275, 26821375]

約数ペア:

[(1, 26821375), (5, 5364275), (7, 3831625), (25, 1072855), (29, 924875), (35, 766325), (49, 547375), (125, 214571), (145, 184975), (151, 177625), (175, 153265), (203, 132125), (245, 109475), (725, 36995), (755, 35525), (875, 30653), (1015, 26425), (1057, 25375), (1225, 21895), (1421, 18875), (3625, 7399), (3775, 7105), (4379, 6125), (5075, 5285)]