66756680

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{31489}}^1$

素因数の和:31553

約数の個数: 32

約数和(自身を含む): 153041400

約数和(自身を除く): 86284720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 31489, 62978, 125956, 157445, 251912, 314890, 629780, 1259560, 1668917, 3337834, 6675668, 8344585, 13351336, 16689170, 33378340, 66756680]

約数ペア:

[(1, 66756680), (2, 33378340), (4, 16689170), (5, 13351336), (8, 8344585), (10, 6675668), (20, 3337834), (40, 1668917), (53, 1259560), (106, 629780), (212, 314890), (265, 251912), (424, 157445), (530, 125956), (1060, 62978), (2120, 31489)]