20175508900

素因数分解:

$2^2\times 5^2\times {\mathrm{149}}^1\times {\mathrm{181}}^1\times {\mathrm{7481}}^1$

素因数の和:7825

約数の個数: 72

約数和(自身を含む): 44324116200

約数和(自身を除く): 24148607300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 149, 181, 298, 362, 596, 724, 745, 905, 1490, 1810, 2980, 3620, 3725, 4525, 7450, 7481, 9050, 14900, 14962, 18100, 26969, 29924, 37405, 53938, 74810, 107876, 134845, 149620, 187025, 269690, 374050, 539380, 674225, 748100, 1114669, 1348450, 1354061, 2229338, 2696900, 2708122, 4458676, 5416244, 5573345, 6770305, 11146690, 13540610, 22293380, 27081220, 27866725, 33851525, 55733450, 67703050, 111466900, 135406100, 201755089, 403510178, 807020356, 1008775445, 2017550890, 4035101780, 5043877225, 10087754450, 20175508900]

約数ペア:

[(1, 20175508900), (2, 10087754450), (4, 5043877225), (5, 4035101780), (10, 2017550890), (20, 1008775445), (25, 807020356), (50, 403510178), (100, 201755089), (149, 135406100), (181, 111466900), (298, 67703050), (362, 55733450), (596, 33851525), (724, 27866725), (745, 27081220), (905, 22293380), (1490, 13540610), (1810, 11146690), (2980, 6770305), (3620, 5573345), (3725, 5416244), (4525, 4458676), (7450, 2708122), (7481, 2696900), (9050, 2229338), (14900, 1354061), (14962, 1348450), (18100, 1114669), (26969, 748100), (29924, 674225), (37405, 539380), (53938, 374050), (74810, 269690), (107876, 187025), (134845, 149620)]