638049280

素因数分解:

$2^{10}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11329}}^1$

素因数の和:11365

約数の個数: 88

約数和(自身を含む): 1669860720

約数和(自身を除く): 1031811440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 512, 640, 704, 880, 1024, 1280, 1408, 1760, 2560, 2816, 3520, 5120, 5632, 7040, 11264, 11329, 14080, 22658, 28160, 45316, 56320, 56645, 90632, 113290, 124619, 181264, 226580, 249238, 362528, 453160, 498476, 623095, 725056, 906320, 996952, 1246190, 1450112, 1812640, 1993904, 2492380, 2900224, 3625280, 3987808, 4984760, 5800448, 7250560, 7975616, 9969520, 11600896, 14501120, 15951232, 19939040, 29002240, 31902464, 39878080, 58004480, 63804928, 79756160, 127609856, 159512320, 319024640, 638049280]

約数ペア:

[(1, 638049280), (2, 319024640), (4, 159512320), (5, 127609856), (8, 79756160), (10, 63804928), (11, 58004480), (16, 39878080), (20, 31902464), (22, 29002240), (32, 19939040), (40, 15951232), (44, 14501120), (55, 11600896), (64, 9969520), (80, 7975616), (88, 7250560), (110, 5800448), (128, 4984760), (160, 3987808), (176, 3625280), (220, 2900224), (256, 2492380), (320, 1993904), (352, 1812640), (440, 1450112), (512, 1246190), (640, 996952), (704, 906320), (880, 725056), (1024, 623095), (1280, 498476), (1408, 453160), (1760, 362528), (2560, 249238), (2816, 226580), (3520, 181264), (5120, 124619), (5632, 113290), (7040, 90632), (11264, 56645), (11329, 56320), (14080, 45316), (22658, 28160)]