1640257619

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1$

素因数の和:796

約数の個数: 64

約数和(自身を含む): 2299057152

約数和(自身を除く): 658799533

約数列:

[1, 7, 11, 13, 37, 67, 77, 91, 143, 259, 407, 469, 481, 661, 737, 871, 1001, 2479, 2849, 3367, 4627, 5159, 5291, 6097, 7271, 8593, 9581, 17353, 24457, 27269, 32227, 37037, 44287, 50897, 60151, 67067, 94523, 171199, 190883, 225589, 269027, 310009, 317941, 354497, 487157, 575731, 661661, 1638619, 1883189, 2225587, 2481479, 3410099, 3497351, 4030117, 6333041, 11470333, 18024809, 21302047, 24481457, 44331287, 126173663, 149114329, 234322517, 1640257619]

約数ペア:

[(1, 1640257619), (7, 234322517), (11, 149114329), (13, 126173663), (37, 44331287), (67, 24481457), (77, 21302047), (91, 18024809), (143, 11470333), (259, 6333041), (407, 4030117), (469, 3497351), (481, 3410099), (661, 2481479), (737, 2225587), (871, 1883189), (1001, 1638619), (2479, 661661), (2849, 575731), (3367, 487157), (4627, 354497), (5159, 317941), (5291, 310009), (6097, 269027), (7271, 225589), (8593, 190883), (9581, 171199), (17353, 94523), (24457, 67067), (27269, 60151), (32227, 50897), (37037, 44287)]