8375889725

素因数分解:

$5^2\times 7^2\times {\mathrm{109}}^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:703

約数の個数: 72

約数和(自身を含む): 12303621000

約数和(自身を除く): 3927731275

約数列:

[1, 5, 7, 25, 35, 49, 109, 149, 175, 245, 421, 545, 745, 763, 1043, 1225, 2105, 2725, 2947, 3725, 3815, 5215, 5341, 7301, 10525, 14735, 16241, 19075, 20629, 26075, 26705, 36505, 45889, 62729, 73675, 81205, 103145, 113687, 133525, 182525, 229445, 313645, 321223, 406025, 439103, 515725, 568435, 795809, 1147225, 1568225, 1606115, 2195515, 2248561, 2842175, 3073721, 3979045, 6837461, 8030575, 10977575, 11242805, 15368605, 19895225, 34187305, 47862227, 56214025, 76843025, 170936525, 239311135, 335035589, 1196555675, 1675177945, 8375889725]

約数ペア:

[(1, 8375889725), (5, 1675177945), (7, 1196555675), (25, 335035589), (35, 239311135), (49, 170936525), (109, 76843025), (149, 56214025), (175, 47862227), (245, 34187305), (421, 19895225), (545, 15368605), (745, 11242805), (763, 10977575), (1043, 8030575), (1225, 6837461), (2105, 3979045), (2725, 3073721), (2947, 2842175), (3725, 2248561), (3815, 2195515), (5215, 1606115), (5341, 1568225), (7301, 1147225), (10525, 795809), (14735, 568435), (16241, 515725), (19075, 439103), (20629, 406025), (26075, 321223), (26705, 313645), (36505, 229445), (45889, 182525), (62729, 133525), (73675, 113687), (81205, 103145)]