7420735.00000000

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71881}}^1$

素因数の和:71904

約数の個数: 36

約数和(自身を含む): 172085508

約数和(自身を除く): 101642128

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 71881, 143762, 287524, 359405, 503167, 718810, 1006334, 1437620, 2012668, 2515835, 3522169, 5031670, 7044338, 10063340, 14088676, 17610845, 35221690, 70443380]

約数ペア:

[(1, 70443380), (2, 35221690), (4, 17610845), (5, 14088676), (7, 10063340), (10, 7044338), (14, 5031670), (20, 3522169), (28, 2515835), (35, 2012668), (49, 1437620), (70, 1006334), (98, 718810), (140, 503167), (196, 359405), (245, 287524), (490, 143762), (980, 71881)]