20584540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{613}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 45799488

約数和(自身を除く): 25214948

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 73, 92, 115, 146, 230, 292, 365, 460, 613, 730, 1226, 1460, 1679, 2452, 3065, 3358, 6130, 6716, 8395, 12260, 14099, 16790, 28198, 33580, 44749, 56396, 70495, 89498, 140990, 178996, 223745, 281980, 447490, 894980, 1029227, 2058454, 4116908, 5146135, 10292270, 20584540]

約数ペア:

[(1, 20584540), (2, 10292270), (4, 5146135), (5, 4116908), (10, 2058454), (20, 1029227), (23, 894980), (46, 447490), (73, 281980), (92, 223745), (115, 178996), (146, 140990), (230, 89498), (292, 70495), (365, 56396), (460, 44749), (613, 33580), (730, 28198), (1226, 16790), (1460, 14099), (1679, 12260), (2452, 8395), (3065, 6716), (3358, 6130)]