67986760

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:766

約数の個数: 64

約数和(自身を含む): 159563520

約数和(自身を除く): 91576760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 71, 74, 142, 148, 185, 284, 296, 355, 370, 568, 647, 710, 740, 1294, 1420, 1480, 2588, 2627, 2840, 3235, 5176, 5254, 6470, 10508, 12940, 13135, 21016, 23939, 25880, 26270, 45937, 47878, 52540, 91874, 95756, 105080, 119695, 183748, 191512, 229685, 239390, 367496, 459370, 478780, 918740, 957560, 1699669, 1837480, 3399338, 6798676, 8498345, 13597352, 16996690, 33993380, 67986760]

約数ペア:

[(1, 67986760), (2, 33993380), (4, 16996690), (5, 13597352), (8, 8498345), (10, 6798676), (20, 3399338), (37, 1837480), (40, 1699669), (71, 957560), (74, 918740), (142, 478780), (148, 459370), (185, 367496), (284, 239390), (296, 229685), (355, 191512), (370, 183748), (568, 119695), (647, 105080), (710, 95756), (740, 91874), (1294, 52540), (1420, 47878), (1480, 45937), (2588, 26270), (2627, 25880), (2840, 23939), (3235, 21016), (5176, 13135), (5254, 12940), (6470, 10508)]