8219380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{313}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 18832464

約数和(自身を除く): 10613084

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 202, 260, 313, 404, 505, 626, 1010, 1252, 1313, 1565, 2020, 2626, 3130, 4069, 5252, 6260, 6565, 8138, 13130, 16276, 20345, 26260, 31613, 40690, 63226, 81380, 126452, 158065, 316130, 410969, 632260, 821938, 1643876, 2054845, 4109690, 8219380]

約数ペア:

[(1, 8219380), (2, 4109690), (4, 2054845), (5, 1643876), (10, 821938), (13, 632260), (20, 410969), (26, 316130), (52, 158065), (65, 126452), (101, 81380), (130, 63226), (202, 40690), (260, 31613), (313, 26260), (404, 20345), (505, 16276), (626, 13130), (1010, 8138), (1252, 6565), (1313, 6260), (1565, 5252), (2020, 4069), (2626, 3130)]