12728240

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:235

約数の個数: 120

約数和(自身を含む): 36640512

約数和(自身を除く): 23912272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 170, 191, 196, 238, 245, 272, 280, 340, 382, 392, 476, 490, 560, 595, 680, 764, 784, 833, 952, 955, 980, 1190, 1337, 1360, 1528, 1666, 1904, 1910, 1960, 2380, 2674, 3056, 3247, 3332, 3820, 3920, 4165, 4760, 5348, 6494, 6664, 6685, 7640, 8330, 9359, 9520, 10696, 12988, 13328, 13370, 15280, 16235, 16660, 18718, 21392, 22729, 25976, 26740, 32470, 33320, 37436, 45458, 46795, 51952, 53480, 64940, 66640, 74872, 90916, 93590, 106960, 113645, 129880, 149744, 159103, 181832, 187180, 227290, 259760, 318206, 363664, 374360, 454580, 636412, 748720, 795515, 909160, 1272824, 1591030, 1818320, 2545648, 3182060, 6364120, 12728240]

約数ペア:

[(1, 12728240), (2, 6364120), (4, 3182060), (5, 2545648), (7, 1818320), (8, 1591030), (10, 1272824), (14, 909160), (16, 795515), (17, 748720), (20, 636412), (28, 454580), (34, 374360), (35, 363664), (40, 318206), (49, 259760), (56, 227290), (68, 187180), (70, 181832), (80, 159103), (85, 149744), (98, 129880), (112, 113645), (119, 106960), (136, 93590), (140, 90916), (170, 74872), (191, 66640), (196, 64940), (238, 53480), (245, 51952), (272, 46795), (280, 45458), (340, 37436), (382, 33320), (392, 32470), (476, 26740), (490, 25976), (560, 22729), (595, 21392), (680, 18718), (764, 16660), (784, 16235), (833, 15280), (952, 13370), (955, 13328), (980, 12988), (1190, 10696), (1337, 9520), (1360, 9359), (1528, 8330), (1666, 7640), (1904, 6685), (1910, 6664), (1960, 6494), (2380, 5348), (2674, 4760), (3056, 4165), (3247, 3920), (3332, 3820)]