18440319440

素因数分解:

$2^4\times 5^1\times {\mathrm{10859}}^1\times {\mathrm{21227}}^1$

素因数の和:32099

約数の個数: 40

約数和(自身を含む): 42879710880

約数和(自身を除く): 24439391440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10859, 21227, 21718, 42454, 43436, 54295, 84908, 86872, 106135, 108590, 169816, 173744, 212270, 217180, 339632, 424540, 434360, 849080, 868720, 1698160, 230503993, 461007986, 922015972, 1152519965, 1844031944, 2305039930, 3688063888, 4610079860, 9220159720, 18440319440]

約数ペア:

[(1, 18440319440), (2, 9220159720), (4, 4610079860), (5, 3688063888), (8, 2305039930), (10, 1844031944), (16, 1152519965), (20, 922015972), (40, 461007986), (80, 230503993), (10859, 1698160), (21227, 868720), (21718, 849080), (42454, 434360), (43436, 424540), (54295, 339632), (84908, 217180), (86872, 212270), (106135, 173744), (108590, 169816)]