20168730128

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{297509}}^1$

素因数の和:297759

約数の個数: 40

約数和(自身を含む): 41318188800

約数和(自身を除く): 21149458672

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 223, 304, 446, 892, 1784, 3568, 4237, 8474, 16948, 33896, 67792, 297509, 595018, 1190036, 2380072, 4760144, 5652671, 11305342, 22610684, 45221368, 66344507, 90442736, 132689014, 265378028, 530756056, 1061512112, 1260545633, 2521091266, 5042182532, 10084365064, 20168730128]

約数ペア:

[(1, 20168730128), (2, 10084365064), (4, 5042182532), (8, 2521091266), (16, 1260545633), (19, 1061512112), (38, 530756056), (76, 265378028), (152, 132689014), (223, 90442736), (304, 66344507), (446, 45221368), (892, 22610684), (1784, 11305342), (3568, 5652671), (4237, 4760144), (8474, 2380072), (16948, 1190036), (33896, 595018), (67792, 297509)]