215219620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139753}}^1$

素因数の和:139780

約数の個数: 48

約数和(自身を含む): 563488128

約数和(自身を除く): 348268508

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 139753, 279506, 559012, 698765, 978271, 1397530, 1537283, 1956542, 2795060, 3074566, 3913084, 4891355, 6149132, 7686415, 9782710, 10760981, 15372830, 19565420, 21521962, 30745660, 43043924, 53804905, 107609810, 215219620]

約数ペア:

[(1, 215219620), (2, 107609810), (4, 53804905), (5, 43043924), (7, 30745660), (10, 21521962), (11, 19565420), (14, 15372830), (20, 10760981), (22, 9782710), (28, 7686415), (35, 6149132), (44, 4891355), (55, 3913084), (70, 3074566), (77, 2795060), (110, 1956542), (140, 1537283), (154, 1397530), (220, 978271), (308, 698765), (385, 559012), (770, 279506), (1540, 139753)]