20148208

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{347}}^1$

素因数の和:565

約数の個数: 40

約数和(自身を含む): 41425920

約数和(自身を除く): 21277712

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 191, 304, 347, 382, 694, 764, 1388, 1528, 2776, 3056, 3629, 5552, 6593, 7258, 13186, 14516, 26372, 29032, 52744, 58064, 66277, 105488, 132554, 265108, 530216, 1060432, 1259263, 2518526, 5037052, 10074104, 20148208]

約数ペア:

[(1, 20148208), (2, 10074104), (4, 5037052), (8, 2518526), (16, 1259263), (19, 1060432), (38, 530216), (76, 265108), (152, 132554), (191, 105488), (304, 66277), (347, 58064), (382, 52744), (694, 29032), (764, 26372), (1388, 14516), (1528, 13186), (2776, 7258), (3056, 6593), (3629, 5552)]