420090874

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{19991}}^1$

素因数の和:20098

約数の個数: 32

約数和(自身を含む): 767692800

約数和(自身を除く): 347601926

約数列:

[1, 2, 7, 14, 19, 38, 79, 133, 158, 266, 553, 1106, 1501, 3002, 10507, 19991, 21014, 39982, 139937, 279874, 379829, 759658, 1579289, 2658803, 3158578, 5317606, 11055023, 22110046, 30006491, 60012982, 210045437, 420090874]

約数ペア:

[(1, 420090874), (2, 210045437), (7, 60012982), (14, 30006491), (19, 22110046), (38, 11055023), (79, 5317606), (133, 3158578), (158, 2658803), (266, 1579289), (553, 759658), (1106, 379829), (1501, 279874), (3002, 139937), (10507, 39982), (19991, 21014)]