17990505

素因数分解:

$3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1$

素因数の和:117

約数の個数: 96

約数和(自身を含む): 37425024

約数和(自身を除く): 19434519

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 39, 45, 51, 65, 67, 81, 85, 117, 135, 153, 195, 201, 221, 243, 255, 335, 351, 405, 459, 585, 603, 663, 765, 871, 1005, 1053, 1105, 1139, 1215, 1377, 1755, 1809, 1989, 2295, 2613, 3015, 3159, 3315, 3417, 4131, 4355, 5265, 5427, 5695, 5967, 6885, 7839, 9045, 9945, 10251, 13065, 14807, 15795, 16281, 17085, 17901, 20655, 23517, 27135, 29835, 30753, 39195, 44421, 51255, 53703, 70551, 74035, 81405, 89505, 92259, 117585, 133263, 153765, 211653, 222105, 268515, 276777, 352755, 399789, 461295, 666315, 1058265, 1199367, 1383885, 1998945, 3598101, 5996835, 17990505]

約数ペア:

[(1, 17990505), (3, 5996835), (5, 3598101), (9, 1998945), (13, 1383885), (15, 1199367), (17, 1058265), (27, 666315), (39, 461295), (45, 399789), (51, 352755), (65, 276777), (67, 268515), (81, 222105), (85, 211653), (117, 153765), (135, 133263), (153, 117585), (195, 92259), (201, 89505), (221, 81405), (243, 74035), (255, 70551), (335, 53703), (351, 51255), (405, 44421), (459, 39195), (585, 30753), (603, 29835), (663, 27135), (765, 23517), (871, 20655), (1005, 17901), (1053, 17085), (1105, 16281), (1139, 15795), (1215, 14807), (1377, 13065), (1755, 10251), (1809, 9945), (1989, 9045), (2295, 7839), (2613, 6885), (3015, 5967), (3159, 5695), (3315, 5427), (3417, 5265), (4131, 4355)]