71394756920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5081}}^1\times {\mathrm{3947}}^1$

素因数の和:9128

約数の個数: 64

約数和(自身を含む): 162516261600

約数和(自身を除く): 91121504680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 3947, 5081, 7894, 10162, 15788, 19735, 20324, 25405, 31576, 39470, 40648, 50810, 78940, 101620, 157880, 203240, 351283, 452209, 702566, 904418, 1405132, 1756415, 1808836, 2261045, 2810264, 3512830, 3617672, 4522090, 7025660, 9044180, 14051320, 18088360, 20054707, 40109414, 80218828, 100273535, 160437656, 200547070, 401094140, 802188280, 1784868923, 3569737846, 7139475692, 8924344615, 14278951384, 17848689230, 35697378460, 71394756920]

約数ペア:

[(1, 71394756920), (2, 35697378460), (4, 17848689230), (5, 14278951384), (8, 8924344615), (10, 7139475692), (20, 3569737846), (40, 1784868923), (89, 802188280), (178, 401094140), (356, 200547070), (445, 160437656), (712, 100273535), (890, 80218828), (1780, 40109414), (3560, 20054707), (3947, 18088360), (5081, 14051320), (7894, 9044180), (10162, 7025660), (15788, 4522090), (19735, 3617672), (20324, 3512830), (25405, 2810264), (31576, 2261045), (39470, 1808836), (40648, 1756415), (50810, 1405132), (78940, 904418), (101620, 702566), (157880, 452209), (203240, 351283)]