18292725

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:435

約数の個数: 72

約数和(自身を含む): 37720800

約数和(自身を除く): 19428075

約数列:

[1, 3, 5, 9, 11, 15, 19, 25, 33, 45, 55, 57, 75, 95, 99, 165, 171, 209, 225, 275, 285, 389, 475, 495, 627, 825, 855, 1045, 1167, 1425, 1881, 1945, 2475, 3135, 3501, 4275, 4279, 5225, 5835, 7391, 9405, 9725, 12837, 15675, 17505, 21395, 22173, 29175, 36955, 38511, 47025, 64185, 66519, 81301, 87525, 106975, 110865, 184775, 192555, 243903, 320925, 332595, 406505, 554325, 731709, 962775, 1219515, 1662975, 2032525, 3658545, 6097575, 18292725]

約数ペア:

[(1, 18292725), (3, 6097575), (5, 3658545), (9, 2032525), (11, 1662975), (15, 1219515), (19, 962775), (25, 731709), (33, 554325), (45, 406505), (55, 332595), (57, 320925), (75, 243903), (95, 192555), (99, 184775), (165, 110865), (171, 106975), (209, 87525), (225, 81301), (275, 66519), (285, 64185), (389, 47025), (475, 38511), (495, 36955), (627, 29175), (825, 22173), (855, 21395), (1045, 17505), (1167, 15675), (1425, 12837), (1881, 9725), (1945, 9405), (2475, 7391), (3135, 5835), (3501, 5225), (4275, 4279)]