219657481240

素因数分解:

$2^3\times 5^1\times {\mathrm{5491437031}}^1$

素因数の和:5491437042

約数の個数: 16

約数和(自身を含む): 494229332880

約数和(自身を除く): 274571851640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5491437031, 10982874062, 21965748124, 27457185155, 43931496248, 54914370310, 109828740620, 219657481240]

約数ペア:

[(1, 219657481240), (2, 109828740620), (4, 54914370310), (5, 43931496248), (8, 27457185155), (10, 21965748124), (20, 10982874062), (40, 5491437031)]