279812680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{999331}}^1$

素因数の和:999349

約数の個数: 32

約数和(自身を含む): 719519040

約数和(自身を除く): 439706360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 999331, 1998662, 3997324, 4996655, 6995317, 7994648, 9993310, 13990634, 19986620, 27981268, 34976585, 39973240, 55962536, 69953170, 139906340, 279812680]

約数ペア:

[(1, 279812680), (2, 139906340), (4, 69953170), (5, 55962536), (7, 39973240), (8, 34976585), (10, 27981268), (14, 19986620), (20, 13990634), (28, 9993310), (35, 7994648), (40, 6995317), (56, 4996655), (70, 3997324), (140, 1998662), (280, 999331)]