31339980

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{8291}}^1$

素因数の和:8316

約数の個数: 96

約数和(自身を含む): 111444480

約数和(自身を除く): 80104500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 8291, 16582, 24873, 33164, 41455, 49746, 58037, 74619, 82910, 99492, 116074, 124365, 149238, 165820, 174111, 223857, 232148, 248730, 290185, 298476, 348222, 373095, 447714, 497460, 522333, 580370, 696444, 746190, 870555, 895428, 1044666, 1119285, 1160740, 1492380, 1566999, 1741110, 2089332, 2238570, 2611665, 3133998, 3482220, 4477140, 5223330, 6267996, 7834995, 10446660, 15669990, 31339980]

約数ペア:

[(1, 31339980), (2, 15669990), (3, 10446660), (4, 7834995), (5, 6267996), (6, 5223330), (7, 4477140), (9, 3482220), (10, 3133998), (12, 2611665), (14, 2238570), (15, 2089332), (18, 1741110), (20, 1566999), (21, 1492380), (27, 1160740), (28, 1119285), (30, 1044666), (35, 895428), (36, 870555), (42, 746190), (45, 696444), (54, 580370), (60, 522333), (63, 497460), (70, 447714), (84, 373095), (90, 348222), (105, 298476), (108, 290185), (126, 248730), (135, 232148), (140, 223857), (180, 174111), (189, 165820), (210, 149238), (252, 124365), (270, 116074), (315, 99492), (378, 82910), (420, 74619), (540, 58037), (630, 49746), (756, 41455), (945, 33164), (1260, 24873), (1890, 16582), (3780, 8291)]