31005540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{613}}^1$

素因数の和:909

約数の個数: 72

約数和(自身を含む): 94538808

約数和(自身を除く): 63533268

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 281, 562, 613, 843, 1124, 1226, 1405, 1686, 1839, 2452, 2529, 2810, 3065, 3372, 3678, 4215, 5058, 5517, 5620, 6130, 7356, 8430, 9195, 10116, 11034, 12260, 12645, 16860, 18390, 22068, 25290, 27585, 36780, 50580, 55170, 110340, 172253, 344506, 516759, 689012, 861265, 1033518, 1550277, 1722530, 2067036, 2583795, 3100554, 3445060, 5167590, 6201108, 7751385, 10335180, 15502770, 31005540]

約数ペア:

[(1, 31005540), (2, 15502770), (3, 10335180), (4, 7751385), (5, 6201108), (6, 5167590), (9, 3445060), (10, 3100554), (12, 2583795), (15, 2067036), (18, 1722530), (20, 1550277), (30, 1033518), (36, 861265), (45, 689012), (60, 516759), (90, 344506), (180, 172253), (281, 110340), (562, 55170), (613, 50580), (843, 36780), (1124, 27585), (1226, 25290), (1405, 22068), (1686, 18390), (1839, 16860), (2452, 12645), (2529, 12260), (2810, 11034), (3065, 10116), (3372, 9195), (3678, 8430), (4215, 7356), (5058, 6130), (5517, 5620)]