678581320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:339

約数の個数: 96

約数和(自身を含む): 1601510400

約数和(自身を除く): 922929080

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 127, 139, 155, 248, 254, 278, 310, 508, 556, 620, 635, 695, 961, 1016, 1112, 1240, 1270, 1390, 1922, 2540, 2780, 3844, 3937, 4309, 4805, 5080, 5560, 7688, 7874, 8618, 9610, 15748, 17236, 17653, 19220, 19685, 21545, 31496, 34472, 35306, 38440, 39370, 43090, 70612, 78740, 86180, 88265, 122047, 133579, 141224, 157480, 172360, 176530, 244094, 267158, 353060, 488188, 534316, 547243, 610235, 667895, 706120, 976376, 1068632, 1094486, 1220470, 1335790, 2188972, 2440940, 2671580, 2736215, 4377944, 4881880, 5343160, 5472430, 10944860, 16964533, 21889720, 33929066, 67858132, 84822665, 135716264, 169645330, 339290660, 678581320]

約数ペア:

[(1, 678581320), (2, 339290660), (4, 169645330), (5, 135716264), (8, 84822665), (10, 67858132), (20, 33929066), (31, 21889720), (40, 16964533), (62, 10944860), (124, 5472430), (127, 5343160), (139, 4881880), (155, 4377944), (248, 2736215), (254, 2671580), (278, 2440940), (310, 2188972), (508, 1335790), (556, 1220470), (620, 1094486), (635, 1068632), (695, 976376), (961, 706120), (1016, 667895), (1112, 610235), (1240, 547243), (1270, 534316), (1390, 488188), (1922, 353060), (2540, 267158), (2780, 244094), (3844, 176530), (3937, 172360), (4309, 157480), (4805, 141224), (5080, 133579), (5560, 122047), (7688, 88265), (7874, 86180), (8618, 78740), (9610, 70612), (15748, 43090), (17236, 39370), (17653, 38440), (19220, 35306), (19685, 34472), (21545, 31496)]