18468885

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:162

約数の個数: 64

約数和(自身を含む): 33841152

約数和(自身を除く): 15372267

約数列:

[1, 3, 5, 15, 17, 23, 47, 51, 67, 69, 85, 115, 141, 201, 235, 255, 335, 345, 391, 705, 799, 1005, 1081, 1139, 1173, 1541, 1955, 2397, 3149, 3243, 3417, 3995, 4623, 5405, 5695, 5865, 7705, 9447, 11985, 15745, 16215, 17085, 18377, 23115, 26197, 47235, 53533, 55131, 72427, 78591, 91885, 130985, 160599, 217281, 267665, 275655, 362135, 392955, 802995, 1086405, 1231259, 3693777, 6156295, 18468885]

約数ペア:

[(1, 18468885), (3, 6156295), (5, 3693777), (15, 1231259), (17, 1086405), (23, 802995), (47, 392955), (51, 362135), (67, 275655), (69, 267665), (85, 217281), (115, 160599), (141, 130985), (201, 91885), (235, 78591), (255, 72427), (335, 55131), (345, 53533), (391, 47235), (705, 26197), (799, 23115), (1005, 18377), (1081, 17085), (1139, 16215), (1173, 15745), (1541, 11985), (1955, 9447), (2397, 7705), (3149, 5865), (3243, 5695), (3417, 5405), (3995, 4623)]