89749780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{271}}^1\times {\mathrm{571}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 196035840

約数和(自身を除く): 106286060

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 271, 290, 542, 571, 580, 1084, 1142, 1355, 2284, 2710, 2855, 5420, 5710, 7859, 11420, 15718, 16559, 31436, 33118, 39295, 66236, 78590, 82795, 154741, 157180, 165590, 309482, 331180, 618964, 773705, 1547410, 3094820, 4487489, 8974978, 17949956, 22437445, 44874890, 89749780]

約数ペア:

[(1, 89749780), (2, 44874890), (4, 22437445), (5, 17949956), (10, 8974978), (20, 4487489), (29, 3094820), (58, 1547410), (116, 773705), (145, 618964), (271, 331180), (290, 309482), (542, 165590), (571, 157180), (580, 154741), (1084, 82795), (1142, 78590), (1355, 66236), (2284, 39295), (2710, 33118), (2855, 31436), (5420, 16559), (5710, 15718), (7859, 11420)]