201561538

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1\times {\mathrm{367}}^1$

素因数の和:634

約数の個数: 32

約数和(自身を含む): 324576000

約数和(自身を除く): 123014462

約数列:

[1, 2, 19, 38, 97, 149, 194, 298, 367, 734, 1843, 2831, 3686, 5662, 6973, 13946, 14453, 28906, 35599, 54683, 71198, 109366, 274607, 549214, 676381, 1038977, 1352762, 2077954, 5304251, 10608502, 100780769, 201561538]

約数ペア:

[(1, 201561538), (2, 100780769), (19, 10608502), (38, 5304251), (97, 2077954), (149, 1352762), (194, 1038977), (298, 676381), (367, 549214), (734, 274607), (1843, 109366), (2831, 71198), (3686, 54683), (5662, 35599), (6973, 28906), (13946, 14453)]