18328275

素因数分解:

$3^5\times 5^2\times 7^1\times {\mathrm{431}}^1$

素因数の和:463

約数の個数: 72

約数和(自身を含む): 38997504

約数和(自身を除く): 20669229

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 81, 105, 135, 175, 189, 225, 243, 315, 405, 431, 525, 567, 675, 945, 1215, 1293, 1575, 1701, 2025, 2155, 2835, 3017, 3879, 4725, 6075, 6465, 8505, 9051, 10775, 11637, 14175, 15085, 19395, 27153, 32325, 34911, 42525, 45255, 58185, 75425, 81459, 96975, 104733, 135765, 174555, 226275, 244377, 290925, 407295, 523665, 678825, 733131, 872775, 1221885, 2036475, 2618325, 3665655, 6109425, 18328275]

約数ペア:

[(1, 18328275), (3, 6109425), (5, 3665655), (7, 2618325), (9, 2036475), (15, 1221885), (21, 872775), (25, 733131), (27, 678825), (35, 523665), (45, 407295), (63, 290925), (75, 244377), (81, 226275), (105, 174555), (135, 135765), (175, 104733), (189, 96975), (225, 81459), (243, 75425), (315, 58185), (405, 45255), (431, 42525), (525, 34911), (567, 32325), (675, 27153), (945, 19395), (1215, 15085), (1293, 14175), (1575, 11637), (1701, 10775), (2025, 9051), (2155, 8505), (2835, 6465), (3017, 6075), (3879, 4725)]