205809725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 290070720

約数和(自身を除く): 84260995

約数列:

[1, 5, 11, 25, 37, 55, 113, 179, 185, 275, 407, 565, 895, 925, 1243, 1969, 2035, 2825, 4181, 4475, 6215, 6623, 9845, 10175, 20227, 20905, 31075, 33115, 45991, 49225, 72853, 101135, 104525, 165575, 222497, 229955, 364265, 505675, 748399, 1112485, 1149775, 1821325, 3741995, 5562425, 8232389, 18709975, 41161945, 205809725]

約数ペア:

[(1, 205809725), (5, 41161945), (11, 18709975), (25, 8232389), (37, 5562425), (55, 3741995), (113, 1821325), (179, 1149775), (185, 1112485), (275, 748399), (407, 505675), (565, 364265), (895, 229955), (925, 222497), (1243, 165575), (1969, 104525), (2035, 101135), (2825, 72853), (4181, 49225), (4475, 45991), (6215, 33115), (6623, 31075), (9845, 20905), (10175, 20227)]