217026375

素因数分解:

$3^1\times 5^3\times {\mathrm{43}}^2\times {\mathrm{313}}^1$

素因数の和:417

約数の個数: 48

約数和(自身を含む): 370906848

約数和(自身を除く): 153880473

約数列:

[1, 3, 5, 15, 25, 43, 75, 125, 129, 215, 313, 375, 645, 939, 1075, 1565, 1849, 3225, 4695, 5375, 5547, 7825, 9245, 13459, 16125, 23475, 27735, 39125, 40377, 46225, 67295, 117375, 138675, 201885, 231125, 336475, 578737, 693375, 1009425, 1682375, 1736211, 2893685, 5047125, 8681055, 14468425, 43405275, 72342125, 217026375]

約数ペア:

[(1, 217026375), (3, 72342125), (5, 43405275), (15, 14468425), (25, 8681055), (43, 5047125), (75, 2893685), (125, 1736211), (129, 1682375), (215, 1009425), (313, 693375), (375, 578737), (645, 336475), (939, 231125), (1075, 201885), (1565, 138675), (1849, 117375), (3225, 67295), (4695, 46225), (5375, 40377), (5547, 39125), (7825, 27735), (9245, 23475), (13459, 16125)]