388655930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{277}}^1$

素因数の和:591

約数の個数: 64

約数和(自身を含む): 776780928

約数和(自身を除く): 388124998

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 251, 277, 430, 502, 554, 559, 1118, 1255, 1385, 2510, 2770, 2795, 3263, 3601, 5590, 6526, 7202, 10793, 11911, 16315, 18005, 21586, 23822, 32630, 36010, 53965, 59555, 69527, 107930, 119110, 139054, 140309, 154843, 280618, 309686, 347635, 695270, 701545, 774215, 903851, 1403090, 1548430, 1807702, 2989661, 4519255, 5979322, 9038510, 14948305, 29896610, 38865593, 77731186, 194327965, 388655930]

約数ペア:

[(1, 388655930), (2, 194327965), (5, 77731186), (10, 38865593), (13, 29896610), (26, 14948305), (43, 9038510), (65, 5979322), (86, 4519255), (130, 2989661), (215, 1807702), (251, 1548430), (277, 1403090), (430, 903851), (502, 774215), (554, 701545), (559, 695270), (1118, 347635), (1255, 309686), (1385, 280618), (2510, 154843), (2770, 140309), (2795, 139054), (3263, 119110), (3601, 107930), (5590, 69527), (6526, 59555), (7202, 53965), (10793, 36010), (11911, 32630), (16315, 23822), (18005, 21586)]