128776256

素因数分解:

$2^6\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1289}}^1$

素因数の和:1531

約数の個数: 56

約数和(自身を含む): 293583360

約数和(自身を除く): 164807104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 223, 224, 446, 448, 892, 1289, 1561, 1784, 2578, 3122, 3568, 5156, 6244, 7136, 9023, 10312, 12488, 14272, 18046, 20624, 24976, 36092, 41248, 49952, 72184, 82496, 99904, 144368, 287447, 288736, 574894, 577472, 1149788, 2012129, 2299576, 4024258, 4599152, 8048516, 9198304, 16097032, 18396608, 32194064, 64388128, 128776256]

約数ペア:

[(1, 128776256), (2, 64388128), (4, 32194064), (7, 18396608), (8, 16097032), (14, 9198304), (16, 8048516), (28, 4599152), (32, 4024258), (56, 2299576), (64, 2012129), (112, 1149788), (223, 577472), (224, 574894), (446, 288736), (448, 287447), (892, 144368), (1289, 99904), (1561, 82496), (1784, 72184), (2578, 49952), (3122, 41248), (3568, 36092), (5156, 24976), (6244, 20624), (7136, 18046), (9023, 14272), (10312, 12488)]