390353260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{161303}}^1$

素因数の和:161334

約数の個数: 36

約数和(自身を含む): 901044144

約数和(自身を除く): 510690884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 161303, 322606, 645212, 806515, 1613030, 1774333, 3226060, 3548666, 7097332, 8871665, 17743330, 19517663, 35486660, 39035326, 78070652, 97588315, 195176630, 390353260]

約数ペア:

[(1, 390353260), (2, 195176630), (4, 97588315), (5, 78070652), (10, 39035326), (11, 35486660), (20, 19517663), (22, 17743330), (44, 8871665), (55, 7097332), (110, 3548666), (121, 3226060), (220, 1774333), (242, 1613030), (484, 806515), (605, 645212), (1210, 322606), (2420, 161303)]