1521940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1553}}^1$

素因数の和:1576

約数の個数: 36

約数和(自身を含む): 3720276

約数和(自身を除く): 2198336

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1553, 3106, 6212, 7765, 10871, 15530, 21742, 31060, 43484, 54355, 76097, 108710, 152194, 217420, 304388, 380485, 760970, 1521940]

約数ペア:

[(1, 1521940), (2, 760970), (4, 380485), (5, 304388), (7, 217420), (10, 152194), (14, 108710), (20, 76097), (28, 54355), (35, 43484), (49, 31060), (70, 21742), (98, 15530), (140, 10871), (196, 7765), (245, 6212), (490, 3106), (980, 1553)]