201891020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{1297}}^1$

素因数の和:1530

約数の個数: 48

約数和(自身を含む): 436564128

約数和(自身を除く): 234673108

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 181, 215, 362, 430, 724, 860, 905, 1297, 1810, 2594, 3620, 5188, 6485, 7783, 12970, 15566, 25940, 31132, 38915, 55771, 77830, 111542, 155660, 223084, 234757, 278855, 469514, 557710, 939028, 1115420, 1173785, 2347570, 4695140, 10094551, 20189102, 40378204, 50472755, 100945510, 201891020]

約数ペア:

[(1, 201891020), (2, 100945510), (4, 50472755), (5, 40378204), (10, 20189102), (20, 10094551), (43, 4695140), (86, 2347570), (172, 1173785), (181, 1115420), (215, 939028), (362, 557710), (430, 469514), (724, 278855), (860, 234757), (905, 223084), (1297, 155660), (1810, 111542), (2594, 77830), (3620, 55771), (5188, 38915), (6485, 31132), (7783, 25940), (12970, 15566)]