8423415

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:70

約数の個数: 144

約数和(自身を含む): 20913984

約数和(自身を除く): 12490569

約数列:

[1, 3, 5, 7, 9, 11, 13, 15, 17, 21, 33, 35, 39, 45, 51, 55, 63, 65, 77, 85, 91, 99, 105, 117, 119, 121, 143, 153, 165, 187, 195, 221, 231, 255, 273, 315, 357, 363, 385, 429, 455, 495, 561, 585, 595, 605, 663, 693, 715, 765, 819, 847, 935, 1001, 1071, 1089, 1105, 1155, 1287, 1309, 1365, 1547, 1573, 1683, 1785, 1815, 1989, 2057, 2145, 2431, 2541, 2805, 3003, 3315, 3465, 3927, 4095, 4235, 4641, 4719, 5005, 5355, 5445, 6171, 6435, 6545, 7293, 7623, 7735, 7865, 8415, 9009, 9945, 10285, 11011, 11781, 12155, 12705, 13923, 14157, 14399, 15015, 17017, 18513, 19635, 21879, 23205, 23595, 26741, 30855, 33033, 36465, 38115, 43197, 45045, 51051, 55055, 58905, 69615, 70785, 71995, 80223, 85085, 92565, 99099, 109395, 129591, 133705, 153153, 165165, 187187, 215985, 240669, 255255, 401115, 495495, 561561, 647955, 765765, 935935, 1203345, 1684683, 2807805, 8423415]

約数ペア:

[(1, 8423415), (3, 2807805), (5, 1684683), (7, 1203345), (9, 935935), (11, 765765), (13, 647955), (15, 561561), (17, 495495), (21, 401115), (33, 255255), (35, 240669), (39, 215985), (45, 187187), (51, 165165), (55, 153153), (63, 133705), (65, 129591), (77, 109395), (85, 99099), (91, 92565), (99, 85085), (105, 80223), (117, 71995), (119, 70785), (121, 69615), (143, 58905), (153, 55055), (165, 51051), (187, 45045), (195, 43197), (221, 38115), (231, 36465), (255, 33033), (273, 30855), (315, 26741), (357, 23595), (363, 23205), (385, 21879), (429, 19635), (455, 18513), (495, 17017), (561, 15015), (585, 14399), (595, 14157), (605, 13923), (663, 12705), (693, 12155), (715, 11781), (765, 11011), (819, 10285), (847, 9945), (935, 9009), (1001, 8415), (1071, 7865), (1089, 7735), (1105, 7623), (1155, 7293), (1287, 6545), (1309, 6435), (1365, 6171), (1547, 5445), (1573, 5355), (1683, 5005), (1785, 4719), (1815, 4641), (1989, 4235), (2057, 4095), (2145, 3927), (2431, 3465), (2541, 3315), (2805, 3003)]