131338640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1217}}^1$

素因数の和:1320

約数の個数: 80

約数和(自身を含む): 326229120

約数和(自身を除く): 194890480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 71, 76, 80, 95, 142, 152, 190, 284, 304, 355, 380, 568, 710, 760, 1136, 1217, 1349, 1420, 1520, 2434, 2698, 2840, 4868, 5396, 5680, 6085, 6745, 9736, 10792, 12170, 13490, 19472, 21584, 23123, 24340, 26980, 46246, 48680, 53960, 86407, 92492, 97360, 107920, 115615, 172814, 184984, 231230, 345628, 369968, 432035, 462460, 691256, 864070, 924920, 1382512, 1641733, 1728140, 1849840, 3283466, 3456280, 6566932, 6912560, 8208665, 13133864, 16417330, 26267728, 32834660, 65669320, 131338640]

約数ペア:

[(1, 131338640), (2, 65669320), (4, 32834660), (5, 26267728), (8, 16417330), (10, 13133864), (16, 8208665), (19, 6912560), (20, 6566932), (38, 3456280), (40, 3283466), (71, 1849840), (76, 1728140), (80, 1641733), (95, 1382512), (142, 924920), (152, 864070), (190, 691256), (284, 462460), (304, 432035), (355, 369968), (380, 345628), (568, 231230), (710, 184984), (760, 172814), (1136, 115615), (1217, 107920), (1349, 97360), (1420, 92492), (1520, 86407), (2434, 53960), (2698, 48680), (2840, 46246), (4868, 26980), (5396, 24340), (5680, 23123), (6085, 21584), (6745, 19472), (9736, 13490), (10792, 12170)]