31894975

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 48854016

約数和(自身を除く): 16959041

約数列:

[1, 5, 7, 17, 25, 35, 71, 85, 119, 151, 175, 355, 425, 497, 595, 755, 1057, 1207, 1775, 2485, 2567, 2975, 3775, 5285, 6035, 8449, 10721, 12425, 12835, 17969, 26425, 30175, 42245, 53605, 64175, 75047, 89845, 182257, 211225, 268025, 375235, 449225, 911285, 1275799, 1876175, 4556425, 6378995, 31894975]

約数ペア:

[(1, 31894975), (5, 6378995), (7, 4556425), (17, 1876175), (25, 1275799), (35, 911285), (71, 449225), (85, 375235), (119, 268025), (151, 211225), (175, 182257), (355, 89845), (425, 75047), (497, 64175), (595, 53605), (755, 42245), (1057, 30175), (1207, 26425), (1775, 17969), (2485, 12835), (2567, 12425), (2975, 10721), (3775, 8449), (5285, 6035)]