72004780

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 155232000

約数和(自身を除く): 83227220

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 139, 236, 278, 295, 439, 556, 590, 695, 878, 1180, 1390, 1756, 2195, 2780, 4390, 8201, 8780, 16402, 25901, 32804, 41005, 51802, 61021, 82010, 103604, 122042, 129505, 164020, 244084, 259010, 305105, 518020, 610210, 1220420, 3600239, 7200478, 14400956, 18001195, 36002390, 72004780]

約数ペア:

[(1, 72004780), (2, 36002390), (4, 18001195), (5, 14400956), (10, 7200478), (20, 3600239), (59, 1220420), (118, 610210), (139, 518020), (236, 305105), (278, 259010), (295, 244084), (439, 164020), (556, 129505), (590, 122042), (695, 103604), (878, 82010), (1180, 61021), (1390, 51802), (1756, 41005), (2195, 32804), (2780, 25901), (4390, 16402), (8201, 8780)]