251999248

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{2579}}^1$

素因数の和:2815

約数の個数: 40

約数和(自身を含む): 506753280

約数和(自身を除く): 254754032

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 197, 248, 394, 496, 788, 1576, 2579, 3152, 5158, 6107, 10316, 12214, 20632, 24428, 41264, 48856, 79949, 97712, 159898, 319796, 508063, 639592, 1016126, 1279184, 2032252, 4064504, 8129008, 15749953, 31499906, 62999812, 125999624, 251999248]

約数ペア:

[(1, 251999248), (2, 125999624), (4, 62999812), (8, 31499906), (16, 15749953), (31, 8129008), (62, 4064504), (124, 2032252), (197, 1279184), (248, 1016126), (394, 639592), (496, 508063), (788, 319796), (1576, 159898), (2579, 97712), (3152, 79949), (5158, 48856), (6107, 41264), (10316, 24428), (12214, 20632)]