261314640

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{389}}^1$

素因数の和:722

約数の個数: 160

約数和(自身を含む): 905299200

約数和(自身を除く): 643984560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 311, 360, 389, 432, 540, 622, 720, 778, 933, 1080, 1167, 1244, 1555, 1556, 1866, 1945, 2160, 2334, 2488, 2799, 3110, 3112, 3501, 3732, 3890, 4665, 4668, 4976, 5598, 5835, 6220, 6224, 7002, 7464, 7780, 8397, 9330, 9336, 10503, 11196, 11670, 12440, 13995, 14004, 14928, 15560, 16794, 17505, 18660, 18672, 21006, 22392, 23340, 24880, 27990, 28008, 31120, 33588, 35010, 37320, 41985, 42012, 44784, 46680, 52515, 55980, 56016, 67176, 70020, 74640, 83970, 84024, 93360, 105030, 111960, 120979, 134352, 140040, 167940, 168048, 210060, 223920, 241958, 280080, 335880, 362937, 420120, 483916, 604895, 671760, 725874, 840240, 967832, 1088811, 1209790, 1451748, 1814685, 1935664, 2177622, 2419580, 2903496, 3266433, 3629370, 4355244, 4839160, 5444055, 5806992, 6532866, 7258740, 8710488, 9678320, 10888110, 13065732, 14517480, 16332165, 17420976, 21776220, 26131464, 29034960, 32664330, 43552440, 52262928, 65328660, 87104880, 130657320, 261314640]

約数ペア:

[(1, 261314640), (2, 130657320), (3, 87104880), (4, 65328660), (5, 52262928), (6, 43552440), (8, 32664330), (9, 29034960), (10, 26131464), (12, 21776220), (15, 17420976), (16, 16332165), (18, 14517480), (20, 13065732), (24, 10888110), (27, 9678320), (30, 8710488), (36, 7258740), (40, 6532866), (45, 5806992), (48, 5444055), (54, 4839160), (60, 4355244), (72, 3629370), (80, 3266433), (90, 2903496), (108, 2419580), (120, 2177622), (135, 1935664), (144, 1814685), (180, 1451748), (216, 1209790), (240, 1088811), (270, 967832), (311, 840240), (360, 725874), (389, 671760), (432, 604895), (540, 483916), (622, 420120), (720, 362937), (778, 335880), (933, 280080), (1080, 241958), (1167, 223920), (1244, 210060), (1555, 168048), (1556, 167940), (1866, 140040), (1945, 134352), (2160, 120979), (2334, 111960), (2488, 105030), (2799, 93360), (3110, 84024), (3112, 83970), (3501, 74640), (3732, 70020), (3890, 67176), (4665, 56016), (4668, 55980), (4976, 52515), (5598, 46680), (5835, 44784), (6220, 42012), (6224, 41985), (7002, 37320), (7464, 35010), (7780, 33588), (8397, 31120), (9330, 28008), (9336, 27990), (10503, 24880), (11196, 23340), (11670, 22392), (12440, 21006), (13995, 18672), (14004, 18660), (14928, 17505), (15560, 16794)]