1285690280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{8713}}^1$

素因数の和:8779

約数の個数: 128

約数和(自身を含む): 3613870080

約数和(自身を除く): 2328179800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 31, 34, 35, 40, 56, 62, 68, 70, 85, 119, 124, 136, 140, 155, 170, 217, 238, 248, 280, 310, 340, 434, 476, 527, 595, 620, 680, 868, 952, 1054, 1085, 1190, 1240, 1736, 2108, 2170, 2380, 2635, 3689, 4216, 4340, 4760, 5270, 7378, 8680, 8713, 10540, 14756, 17426, 18445, 21080, 29512, 34852, 36890, 43565, 60991, 69704, 73780, 87130, 121982, 147560, 148121, 174260, 243964, 270103, 296242, 304955, 348520, 487928, 540206, 592484, 609910, 740605, 1036847, 1080412, 1184968, 1219820, 1350515, 1481210, 1890721, 2073694, 2160824, 2439640, 2701030, 2962420, 3781442, 4147388, 4591751, 5184235, 5402060, 5924840, 7562884, 8294776, 9183502, 9453605, 10368470, 10804120, 15125768, 18367004, 18907210, 20736940, 22958755, 32142257, 36734008, 37814420, 41473880, 45917510, 64284514, 75628840, 91835020, 128569028, 160711285, 183670040, 257138056, 321422570, 642845140, 1285690280]

約数ペア:

[(1, 1285690280), (2, 642845140), (4, 321422570), (5, 257138056), (7, 183670040), (8, 160711285), (10, 128569028), (14, 91835020), (17, 75628840), (20, 64284514), (28, 45917510), (31, 41473880), (34, 37814420), (35, 36734008), (40, 32142257), (56, 22958755), (62, 20736940), (68, 18907210), (70, 18367004), (85, 15125768), (119, 10804120), (124, 10368470), (136, 9453605), (140, 9183502), (155, 8294776), (170, 7562884), (217, 5924840), (238, 5402060), (248, 5184235), (280, 4591751), (310, 4147388), (340, 3781442), (434, 2962420), (476, 2701030), (527, 2439640), (595, 2160824), (620, 2073694), (680, 1890721), (868, 1481210), (952, 1350515), (1054, 1219820), (1085, 1184968), (1190, 1080412), (1240, 1036847), (1736, 740605), (2108, 609910), (2170, 592484), (2380, 540206), (2635, 487928), (3689, 348520), (4216, 304955), (4340, 296242), (4760, 270103), (5270, 243964), (7378, 174260), (8680, 148121), (8713, 147560), (10540, 121982), (14756, 87130), (17426, 73780), (18445, 69704), (21080, 60991), (29512, 43565), (34852, 36890)]