18888907120

素因数分解:

$2^4\times 5^1\times {\mathrm{236111339}}^1$

素因数の和:236111352

約数の個数: 20

約数和(自身を含む): 43916709240

約数和(自身を除く): 25027802120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 236111339, 472222678, 944445356, 1180556695, 1888890712, 2361113390, 3777781424, 4722226780, 9444453560, 18888907120]

約数ペア:

[(1, 18888907120), (2, 9444453560), (4, 4722226780), (5, 3777781424), (8, 2361113390), (10, 1888890712), (16, 1180556695), (20, 944445356), (40, 472222678), (80, 236111339)]