217263872

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3911}}^1$

素因数の和:3965

約数の個数: 72

約数和(自身を含む): 511752192

約数和(自身を除く): 294488320

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 434, 448, 496, 868, 896, 992, 1736, 1792, 1984, 3472, 3911, 3968, 6944, 7822, 7936, 13888, 15644, 27377, 27776, 31288, 54754, 55552, 62576, 109508, 121241, 125152, 219016, 242482, 250304, 438032, 484964, 500608, 848687, 876064, 969928, 1001216, 1697374, 1752128, 1939856, 3394748, 3504256, 3879712, 6789496, 7008512, 7759424, 13578992, 15518848, 27157984, 31037696, 54315968, 108631936, 217263872]

約数ペア:

[(1, 217263872), (2, 108631936), (4, 54315968), (7, 31037696), (8, 27157984), (14, 15518848), (16, 13578992), (28, 7759424), (31, 7008512), (32, 6789496), (56, 3879712), (62, 3504256), (64, 3394748), (112, 1939856), (124, 1752128), (128, 1697374), (217, 1001216), (224, 969928), (248, 876064), (256, 848687), (434, 500608), (448, 484964), (496, 438032), (868, 250304), (896, 242482), (992, 219016), (1736, 125152), (1792, 121241), (1984, 109508), (3472, 62576), (3911, 55552), (3968, 54754), (6944, 31288), (7822, 27776), (7936, 27377), (13888, 15644)]