31460781225

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^2\times {\mathrm{7823}}^1$

素因数の和:7951

約数の個数: 72

約数和(自身を含む): 55096295040

約数和(自身を除く): 23635513815

約数列:

[1, 3, 5, 15, 25, 29, 43, 75, 87, 129, 145, 215, 435, 645, 725, 1075, 1247, 1849, 2175, 3225, 3741, 5547, 6235, 7823, 9245, 18705, 23469, 27735, 31175, 39115, 46225, 53621, 93525, 117345, 138675, 160863, 195575, 226867, 268105, 336389, 586725, 680601, 804315, 1009167, 1134335, 1340525, 1681945, 3403005, 4021575, 5045835, 5671675, 8409725, 9755281, 14464727, 17015025, 25229175, 29265843, 43394181, 48776405, 72323635, 146329215, 216970905, 243882025, 361618175, 419477083, 731646075, 1084854525, 1258431249, 2097385415, 6292156245, 10486927075, 31460781225]

約数ペア:

[(1, 31460781225), (3, 10486927075), (5, 6292156245), (15, 2097385415), (25, 1258431249), (29, 1084854525), (43, 731646075), (75, 419477083), (87, 361618175), (129, 243882025), (145, 216970905), (215, 146329215), (435, 72323635), (645, 48776405), (725, 43394181), (1075, 29265843), (1247, 25229175), (1849, 17015025), (2175, 14464727), (3225, 9755281), (3741, 8409725), (5547, 5671675), (6235, 5045835), (7823, 4021575), (9245, 3403005), (18705, 1681945), (23469, 1340525), (27735, 1134335), (31175, 1009167), (39115, 804315), (46225, 680601), (53621, 586725), (93525, 336389), (117345, 268105), (138675, 226867), (160863, 195575)]