289735025

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 390832128

約数和(自身を除く): 101097103

約数列:

[1, 5, 23, 25, 47, 71, 115, 151, 235, 355, 575, 755, 1081, 1175, 1633, 1775, 3337, 3473, 3775, 5405, 7097, 8165, 10721, 16685, 17365, 27025, 35485, 40825, 53605, 76751, 83425, 86825, 163231, 177425, 246583, 268025, 383755, 503887, 816155, 1232915, 1918775, 2519435, 4080775, 6164575, 11589401, 12597175, 57947005, 289735025]

約数ペア:

[(1, 289735025), (5, 57947005), (23, 12597175), (25, 11589401), (47, 6164575), (71, 4080775), (115, 2519435), (151, 1918775), (235, 1232915), (355, 816155), (575, 503887), (755, 383755), (1081, 268025), (1175, 246583), (1633, 177425), (1775, 163231), (3337, 86825), (3473, 83425), (3775, 76751), (5405, 53605), (7097, 40825), (8165, 35485), (10721, 27025), (16685, 17365)]