71997975

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2689}}^1$

素因数の和:2729

約数の個数: 72

約数和(自身を含む): 156106080

約数和(自身を除く): 84108105

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 25, 35, 45, 51, 63, 75, 85, 105, 119, 153, 175, 225, 255, 315, 357, 425, 525, 595, 765, 1071, 1275, 1575, 1785, 2689, 2975, 3825, 5355, 8067, 8925, 13445, 18823, 24201, 26775, 40335, 45713, 56469, 67225, 94115, 121005, 137139, 169407, 201675, 228565, 282345, 319991, 411417, 470575, 605025, 685695, 847035, 959973, 1142825, 1411725, 1599955, 2057085, 2879919, 3428475, 4235175, 4799865, 7999775, 10285425, 14399595, 23999325, 71997975]

約数ペア:

[(1, 71997975), (3, 23999325), (5, 14399595), (7, 10285425), (9, 7999775), (15, 4799865), (17, 4235175), (21, 3428475), (25, 2879919), (35, 2057085), (45, 1599955), (51, 1411725), (63, 1142825), (75, 959973), (85, 847035), (105, 685695), (119, 605025), (153, 470575), (175, 411417), (225, 319991), (255, 282345), (315, 228565), (357, 201675), (425, 169407), (525, 137139), (595, 121005), (765, 94115), (1071, 67225), (1275, 56469), (1575, 45713), (1785, 40335), (2689, 26775), (2975, 24201), (3825, 18823), (5355, 13445), (8067, 8925)]