28743428

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{557}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 61246080

約数和(自身を除く): 32502652

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 97, 133, 194, 266, 388, 532, 557, 679, 1114, 1358, 1843, 2228, 2716, 3686, 3899, 7372, 7798, 10583, 12901, 15596, 21166, 25802, 42332, 51604, 54029, 74081, 108058, 148162, 216116, 296324, 378203, 756406, 1026551, 1512812, 2053102, 4106204, 7185857, 14371714, 28743428]

約数ペア:

[(1, 28743428), (2, 14371714), (4, 7185857), (7, 4106204), (14, 2053102), (19, 1512812), (28, 1026551), (38, 756406), (76, 378203), (97, 296324), (133, 216116), (194, 148162), (266, 108058), (388, 74081), (532, 54029), (557, 51604), (679, 42332), (1114, 25802), (1358, 21166), (1843, 15596), (2228, 12901), (2716, 10583), (3686, 7798), (3899, 7372)]