661748128

素因数分解:

$2^5\times {\mathrm{389}}^1\times {\mathrm{53161}}^1$

素因数の和:53560

約数の個数: 24

約数和(自身を含む): 1306190340

約数和(自身を除く): 644442212

約数列:

[1, 2, 4, 8, 16, 32, 389, 778, 1556, 3112, 6224, 12448, 53161, 106322, 212644, 425288, 850576, 1701152, 20679629, 41359258, 82718516, 165437032, 330874064, 661748128]

約数ペア:

[(1, 661748128), (2, 330874064), (4, 165437032), (8, 82718516), (16, 41359258), (32, 20679629), (389, 1701152), (778, 850576), (1556, 425288), (3112, 212644), (6224, 106322), (12448, 53161)]