90842985

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1721}}^1$

素因数の和:1775

約数の個数: 64

約数和(自身を含む): 178536960

約数和(自身を除く): 87693975

約数列:

[1, 3, 5, 9, 15, 17, 23, 27, 45, 51, 69, 85, 115, 135, 153, 207, 255, 345, 391, 459, 621, 765, 1035, 1173, 1721, 1955, 2295, 3105, 3519, 5163, 5865, 8605, 10557, 15489, 17595, 25815, 29257, 39583, 46467, 52785, 77445, 87771, 118749, 146285, 197915, 232335, 263313, 356247, 438855, 593745, 672911, 789939, 1068741, 1316565, 1781235, 2018733, 3364555, 3949695, 5343705, 6056199, 10093665, 18168597, 30280995, 90842985]

約数ペア:

[(1, 90842985), (3, 30280995), (5, 18168597), (9, 10093665), (15, 6056199), (17, 5343705), (23, 3949695), (27, 3364555), (45, 2018733), (51, 1781235), (69, 1316565), (85, 1068741), (115, 789939), (135, 672911), (153, 593745), (207, 438855), (255, 356247), (345, 263313), (391, 232335), (459, 197915), (621, 146285), (765, 118749), (1035, 87771), (1173, 77445), (1721, 52785), (1955, 46467), (2295, 39583), (3105, 29257), (3519, 25815), (5163, 17595), (5865, 15489), (8605, 10557)]