80917020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5051}}^1$

素因数の和:5155

約数の個数: 72

約数和(自身を含む): 248255280

約数和(自身を除く): 167338260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 2670, 3204, 4005, 5051, 5340, 8010, 10102, 15153, 16020, 20204, 25255, 30306, 45459, 50510, 60612, 75765, 90918, 101020, 151530, 181836, 227295, 303060, 449539, 454590, 899078, 909180, 1348617, 1798156, 2247695, 2697234, 4045851, 4495390, 5394468, 6743085, 8091702, 8990780, 13486170, 16183404, 20229255, 26972340, 40458510, 80917020]

約数ペア:

[(1, 80917020), (2, 40458510), (3, 26972340), (4, 20229255), (5, 16183404), (6, 13486170), (9, 8990780), (10, 8091702), (12, 6743085), (15, 5394468), (18, 4495390), (20, 4045851), (30, 2697234), (36, 2247695), (45, 1798156), (60, 1348617), (89, 909180), (90, 899078), (178, 454590), (180, 449539), (267, 303060), (356, 227295), (445, 181836), (534, 151530), (801, 101020), (890, 90918), (1068, 75765), (1335, 60612), (1602, 50510), (1780, 45459), (2670, 30306), (3204, 25255), (4005, 20204), (5051, 16020), (5340, 15153), (8010, 10102)]