80289180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3209}}^1$

素因数の和:3363

約数の個数: 72

約数和(自身を含む): 245372400

約数和(自身を除く): 165083220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2780, 3209, 4170, 5004, 6255, 6418, 8340, 9627, 12510, 12836, 16045, 19254, 25020, 28881, 32090, 38508, 48135, 57762, 64180, 96270, 115524, 144405, 192540, 288810, 446051, 577620, 892102, 1338153, 1784204, 2230255, 2676306, 4014459, 4460510, 5352612, 6690765, 8028918, 8921020, 13381530, 16057836, 20072295, 26763060, 40144590, 80289180]

約数ペア:

[(1, 80289180), (2, 40144590), (3, 26763060), (4, 20072295), (5, 16057836), (6, 13381530), (9, 8921020), (10, 8028918), (12, 6690765), (15, 5352612), (18, 4460510), (20, 4014459), (30, 2676306), (36, 2230255), (45, 1784204), (60, 1338153), (90, 892102), (139, 577620), (180, 446051), (278, 288810), (417, 192540), (556, 144405), (695, 115524), (834, 96270), (1251, 64180), (1390, 57762), (1668, 48135), (2085, 38508), (2502, 32090), (2780, 28881), (3209, 25020), (4170, 19254), (5004, 16045), (6255, 12836), (6418, 12510), (8340, 9627)]