19183640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{523}}^1$

素因数の和:672

約数の個数: 64

約数和(自身を含む): 49800960

約数和(自身を除く): 30617320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 523, 524, 655, 917, 1046, 1048, 1310, 1834, 2092, 2615, 2620, 3661, 3668, 4184, 4585, 5230, 5240, 7322, 7336, 9170, 10460, 14644, 18305, 18340, 20920, 29288, 36610, 36680, 68513, 73220, 137026, 146440, 274052, 342565, 479591, 548104, 685130, 959182, 1370260, 1918364, 2397955, 2740520, 3836728, 4795910, 9591820, 19183640]

約数ペア:

[(1, 19183640), (2, 9591820), (4, 4795910), (5, 3836728), (7, 2740520), (8, 2397955), (10, 1918364), (14, 1370260), (20, 959182), (28, 685130), (35, 548104), (40, 479591), (56, 342565), (70, 274052), (131, 146440), (140, 137026), (262, 73220), (280, 68513), (523, 36680), (524, 36610), (655, 29288), (917, 20920), (1046, 18340), (1048, 18305), (1310, 14644), (1834, 10460), (2092, 9170), (2615, 7336), (2620, 7322), (3661, 5240), (3668, 5230), (4184, 4585)]