221470280

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{24391}}^1$

素因数の和:24629

約数の個数: 32

約数和(自身を含む): 500523840

約数和(自身を除く): 279053560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 4540, 9080, 24391, 48782, 97564, 121955, 195128, 243910, 487820, 975640, 5536757, 11073514, 22147028, 27683785, 44294056, 55367570, 110735140, 221470280]

約数ペア:

[(1, 221470280), (2, 110735140), (4, 55367570), (5, 44294056), (8, 27683785), (10, 22147028), (20, 11073514), (40, 5536757), (227, 975640), (454, 487820), (908, 243910), (1135, 195128), (1816, 121955), (2270, 97564), (4540, 48782), (9080, 24391)]