64975275

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{16987}}^1$

素因数の和:17020

約数の個数: 36

約数和(自身を含む): 123230952

約数和(自身を除く): 58255677

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 16987, 50961, 84935, 152883, 254805, 288779, 424675, 764415, 866337, 1274025, 1443895, 2599011, 3822075, 4331685, 7219475, 12995055, 21658425, 64975275]

約数ペア:

[(1, 64975275), (3, 21658425), (5, 12995055), (9, 7219475), (15, 4331685), (17, 3822075), (25, 2599011), (45, 1443895), (51, 1274025), (75, 866337), (85, 764415), (153, 424675), (225, 288779), (255, 254805), (425, 152883), (765, 84935), (1275, 50961), (3825, 16987)]