28671225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1511}}^1$

素因数の和:1558

約数の個数: 48

約数和(自身を含む): 53996544

約数和(自身を除く): 25325319

約数列:

[1, 3, 5, 11, 15, 23, 25, 33, 55, 69, 75, 115, 165, 253, 275, 345, 575, 759, 825, 1265, 1511, 1725, 3795, 4533, 6325, 7555, 16621, 18975, 22665, 34753, 37775, 49863, 83105, 104259, 113325, 173765, 249315, 382283, 415525, 521295, 868825, 1146849, 1246575, 1911415, 2606475, 5734245, 9557075, 28671225]

約数ペア:

[(1, 28671225), (3, 9557075), (5, 5734245), (11, 2606475), (15, 1911415), (23, 1246575), (25, 1146849), (33, 868825), (55, 521295), (69, 415525), (75, 382283), (115, 249315), (165, 173765), (253, 113325), (275, 104259), (345, 83105), (575, 49863), (759, 37775), (825, 34753), (1265, 22665), (1511, 18975), (1725, 16621), (3795, 7555), (4533, 6325)]