222940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:237

約数の個数: 24

約数和(自身を含む): 477792

約数和(自身を除く): 254852

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 157, 284, 314, 355, 628, 710, 785, 1420, 1570, 3140, 11147, 22294, 44588, 55735, 111470, 222940]

約数ペア:

[(1, 222940), (2, 111470), (4, 55735), (5, 44588), (10, 22294), (20, 11147), (71, 3140), (142, 1570), (157, 1420), (284, 785), (314, 710), (355, 628)]