2018245640

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{368293}}^1$

素因数の和:368441

約数の個数: 32

約数和(自身を含む): 4574211480

約数和(自身を除く): 2555965840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 368293, 736586, 1473172, 1841465, 2946344, 3682930, 7365860, 14731720, 50456141, 100912282, 201824564, 252280705, 403649128, 504561410, 1009122820, 2018245640]

約数ペア:

[(1, 2018245640), (2, 1009122820), (4, 504561410), (5, 403649128), (8, 252280705), (10, 201824564), (20, 100912282), (40, 50456141), (137, 14731720), (274, 7365860), (548, 3682930), (685, 2946344), (1096, 1841465), (1370, 1473172), (2740, 736586), (5480, 368293)]