205657375

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{929}}^1$

素因数の和:985

約数の個数: 64

約数和(自身を含む): 334264320

約数和(自身を除く): 128606945

約数列:

[1, 5, 7, 11, 23, 25, 35, 55, 77, 115, 125, 161, 175, 253, 275, 385, 575, 805, 875, 929, 1265, 1375, 1771, 1925, 2875, 4025, 4645, 6325, 6503, 8855, 9625, 10219, 20125, 21367, 23225, 31625, 32515, 44275, 51095, 71533, 106835, 116125, 149569, 162575, 221375, 235037, 255475, 357665, 534175, 747845, 812875, 1175185, 1277375, 1645259, 1788325, 2670875, 3739225, 5875925, 8226295, 8941625, 18696125, 29379625, 41131475, 205657375]

約数ペア:

[(1, 205657375), (5, 41131475), (7, 29379625), (11, 18696125), (23, 8941625), (25, 8226295), (35, 5875925), (55, 3739225), (77, 2670875), (115, 1788325), (125, 1645259), (161, 1277375), (175, 1175185), (253, 812875), (275, 747845), (385, 534175), (575, 357665), (805, 255475), (875, 235037), (929, 221375), (1265, 162575), (1375, 149569), (1771, 116125), (1925, 106835), (2875, 71533), (4025, 51095), (4645, 44275), (6325, 32515), (6503, 31625), (8855, 23225), (9625, 21367), (10219, 20125)]