8078140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{8243}}^1$

素因数の和:8266

約数の個数: 36

約数和(自身を含む): 19736136

約数和(自身を除く): 11657996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 8243, 16486, 32972, 41215, 57701, 82430, 115402, 164860, 230804, 288505, 403907, 577010, 807814, 1154020, 1615628, 2019535, 4039070, 8078140]

約数ペア:

[(1, 8078140), (2, 4039070), (4, 2019535), (5, 1615628), (7, 1154020), (10, 807814), (14, 577010), (20, 403907), (28, 288505), (35, 230804), (49, 164860), (70, 115402), (98, 82430), (140, 57701), (196, 41215), (245, 32972), (490, 16486), (980, 8243)]