639967910402

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1789}}^1\times {\mathrm{108863}}^1$

素因数の和:110738

約数の個数: 32

約数和(自身を含む): 1010188247040

約数和(自身を除く): 370220336638

約数列:

[1, 2, 31, 53, 62, 106, 1643, 1789, 3286, 3578, 55459, 94817, 108863, 110918, 189634, 217726, 2939327, 3374753, 5769739, 5878654, 6749506, 11539478, 178861909, 194755907, 357723818, 389511814, 6037433117, 10322063071, 12074866234, 20644126142, 319983955201, 639967910402]

約数ペア:

[(1, 639967910402), (2, 319983955201), (31, 20644126142), (53, 12074866234), (62, 10322063071), (106, 6037433117), (1643, 389511814), (1789, 357723818), (3286, 194755907), (3578, 178861909), (55459, 11539478), (94817, 6749506), (108863, 5878654), (110918, 5769739), (189634, 3374753), (217726, 2939327)]