661569436

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{71941}}^1$

素因数の和:71986

約数の個数: 36

約数和(自身を含む): 1339560040

約数和(自身を除く): 677990604

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 209, 242, 418, 484, 836, 2299, 4598, 9196, 71941, 143882, 287764, 791351, 1366879, 1582702, 2733758, 3165404, 5467516, 8704861, 15035669, 17409722, 30071338, 34819444, 60142676, 165392359, 330784718, 661569436]

約数ペア:

[(1, 661569436), (2, 330784718), (4, 165392359), (11, 60142676), (19, 34819444), (22, 30071338), (38, 17409722), (44, 15035669), (76, 8704861), (121, 5467516), (209, 3165404), (242, 2733758), (418, 1582702), (484, 1366879), (836, 791351), (2299, 287764), (4598, 143882), (9196, 71941)]