80069920

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{1459}}^1$

素因数の和:1495

約数の個数: 96

約数和(自身を含む): 220752000

約数和(自身を除く): 140682080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1120, 1372, 1459, 1568, 1715, 1960, 2744, 2918, 3430, 3920, 5488, 5836, 6860, 7295, 7840, 10213, 10976, 11672, 13720, 14590, 20426, 23344, 27440, 29180, 40852, 46688, 51065, 54880, 58360, 71491, 81704, 102130, 116720, 142982, 163408, 204260, 233440, 285964, 326816, 357455, 408520, 500437, 571928, 714910, 817040, 1000874, 1143856, 1429820, 1634080, 2001748, 2287712, 2502185, 2859640, 4003496, 5004370, 5719280, 8006992, 10008740, 11438560, 16013984, 20017480, 40034960, 80069920]

約数ペア:

[(1, 80069920), (2, 40034960), (4, 20017480), (5, 16013984), (7, 11438560), (8, 10008740), (10, 8006992), (14, 5719280), (16, 5004370), (20, 4003496), (28, 2859640), (32, 2502185), (35, 2287712), (40, 2001748), (49, 1634080), (56, 1429820), (70, 1143856), (80, 1000874), (98, 817040), (112, 714910), (140, 571928), (160, 500437), (196, 408520), (224, 357455), (245, 326816), (280, 285964), (343, 233440), (392, 204260), (490, 163408), (560, 142982), (686, 116720), (784, 102130), (980, 81704), (1120, 71491), (1372, 58360), (1459, 54880), (1568, 51065), (1715, 46688), (1960, 40852), (2744, 29180), (2918, 27440), (3430, 23344), (3920, 20426), (5488, 14590), (5836, 13720), (6860, 11672), (7295, 10976), (7840, 10213)]