20779330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1321}}^1$

素因数の和:1363

約数の個数: 48

約数和(自身を含む): 44308152

約数和(自身を除く): 23528822

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 242, 286, 605, 715, 1210, 1321, 1430, 1573, 2642, 3146, 6605, 7865, 13210, 14531, 15730, 17173, 29062, 34346, 72655, 85865, 145310, 159841, 171730, 188903, 319682, 377806, 799205, 944515, 1598410, 1889030, 2077933, 4155866, 10389665, 20779330]

約数ペア:

[(1, 20779330), (2, 10389665), (5, 4155866), (10, 2077933), (11, 1889030), (13, 1598410), (22, 944515), (26, 799205), (55, 377806), (65, 319682), (110, 188903), (121, 171730), (130, 159841), (143, 145310), (242, 85865), (286, 72655), (605, 34346), (715, 29062), (1210, 17173), (1321, 15730), (1430, 14531), (1573, 13210), (2642, 7865), (3146, 6605)]