804917860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{5171}}^1$

素因数の和:5404

約数の個数: 48

約数和(自身を含む): 1739529792

約数和(自身を除く): 934611932

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 181, 215, 362, 430, 724, 860, 905, 1810, 3620, 5171, 7783, 10342, 15566, 20684, 25855, 31132, 38915, 51710, 77830, 103420, 155660, 222353, 444706, 889412, 935951, 1111765, 1871902, 2223530, 3743804, 4447060, 4679755, 9359510, 18719020, 40245893, 80491786, 160983572, 201229465, 402458930, 804917860]

約数ペア:

[(1, 804917860), (2, 402458930), (4, 201229465), (5, 160983572), (10, 80491786), (20, 40245893), (43, 18719020), (86, 9359510), (172, 4679755), (181, 4447060), (215, 3743804), (362, 2223530), (430, 1871902), (724, 1111765), (860, 935951), (905, 889412), (1810, 444706), (3620, 222353), (5171, 155660), (7783, 103420), (10342, 77830), (15566, 51710), (20684, 38915), (25855, 31132)]