71399745

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{587}}^1$

素因数の和:671

約数の個数: 64

約数和(自身を含む): 137168640

約数和(自身を除く): 65768895

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 53, 85, 135, 153, 159, 255, 265, 459, 477, 587, 765, 795, 901, 1431, 1761, 2295, 2385, 2703, 2935, 4505, 5283, 7155, 8109, 8805, 9979, 13515, 15849, 24327, 26415, 29937, 31111, 40545, 49895, 79245, 89811, 93333, 121635, 149685, 155555, 269433, 279999, 449055, 466665, 528887, 839997, 1347165, 1399995, 1586661, 2644435, 4199985, 4759983, 7933305, 14279949, 23799915, 71399745]

約数ペア:

[(1, 71399745), (3, 23799915), (5, 14279949), (9, 7933305), (15, 4759983), (17, 4199985), (27, 2644435), (45, 1586661), (51, 1399995), (53, 1347165), (85, 839997), (135, 528887), (153, 466665), (159, 449055), (255, 279999), (265, 269433), (459, 155555), (477, 149685), (587, 121635), (765, 93333), (795, 89811), (901, 79245), (1431, 49895), (1761, 40545), (2295, 31111), (2385, 29937), (2703, 26415), (2935, 24327), (4505, 15849), (5283, 13515), (7155, 9979), (8109, 8805)]