20147120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{35977}}^1$

素因数の和:35997

約数の個数: 40

約数和(自身を含む): 53535264

約数和(自身を除く): 33388144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 35977, 71954, 143908, 179885, 251839, 287816, 359770, 503678, 575632, 719540, 1007356, 1259195, 1439080, 2014712, 2518390, 2878160, 4029424, 5036780, 10073560, 20147120]

約数ペア:

[(1, 20147120), (2, 10073560), (4, 5036780), (5, 4029424), (7, 2878160), (8, 2518390), (10, 2014712), (14, 1439080), (16, 1259195), (20, 1007356), (28, 719540), (35, 575632), (40, 503678), (56, 359770), (70, 287816), (80, 251839), (112, 179885), (140, 143908), (280, 71954), (560, 35977)]