101920420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{728003}}^1$

素因数の和:728019

約数の個数: 24

約数和(自身を含む): 244609344

約数和(自身を除く): 142688924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 728003, 1456006, 2912012, 3640015, 5096021, 7280030, 10192042, 14560060, 20384084, 25480105, 50960210, 101920420]

約数ペア:

[(1, 101920420), (2, 50960210), (4, 25480105), (5, 20384084), (7, 14560060), (10, 10192042), (14, 7280030), (20, 5096021), (28, 3640015), (35, 2912012), (70, 1456006), (140, 728003)]