161243289040

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28387903}}^1$

素因数の和:28387987

約数の個数: 40

約数和(自身を含む): 380170810368

約数和(自身を除く): 218927521328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 28387903, 56775806, 113551612, 141939515, 227103224, 283879030, 454206448, 567758060, 1135516120, 2015541113, 2271032240, 4031082226, 8062164452, 10077705565, 16124328904, 20155411130, 32248657808, 40310822260, 80621644520, 161243289040]

約数ペア:

[(1, 161243289040), (2, 80621644520), (4, 40310822260), (5, 32248657808), (8, 20155411130), (10, 16124328904), (16, 10077705565), (20, 8062164452), (40, 4031082226), (71, 2271032240), (80, 2015541113), (142, 1135516120), (284, 567758060), (355, 454206448), (568, 283879030), (710, 227103224), (1136, 141939515), (1420, 113551612), (2840, 56775806), (5680, 28387903)]