38401940

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{31477}}^1$

素因数の和:31547

約数の個数: 24

約数和(自身を含む): 81968712

約数和(自身を除く): 43566772

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 31477, 62954, 125908, 157385, 314770, 629540, 1920097, 3840194, 7680388, 9600485, 19200970, 38401940]

約数ペア:

[(1, 38401940), (2, 19200970), (4, 9600485), (5, 7680388), (10, 3840194), (20, 1920097), (61, 629540), (122, 314770), (244, 157385), (305, 125908), (610, 62954), (1220, 31477)]