248807680

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1$

素因数の和:504

約数の個数: 144

約数和(自身を含む): 667554048

約数和(自身を除く): 418746368

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 64, 80, 82, 88, 110, 128, 160, 164, 176, 205, 220, 256, 320, 328, 352, 410, 431, 440, 451, 640, 656, 704, 820, 862, 880, 902, 1280, 1312, 1408, 1640, 1724, 1760, 1804, 2155, 2255, 2624, 2816, 3280, 3448, 3520, 3608, 4310, 4510, 4741, 5248, 6560, 6896, 7040, 7216, 8620, 9020, 9482, 10496, 13120, 13792, 14080, 14432, 17240, 17671, 18040, 18964, 23705, 26240, 27584, 28864, 34480, 35342, 36080, 37928, 47410, 52480, 55168, 57728, 68960, 70684, 72160, 75856, 88355, 94820, 110336, 115456, 137920, 141368, 144320, 151712, 176710, 189640, 194381, 275840, 282736, 288640, 303424, 353420, 379280, 388762, 551680, 565472, 577280, 606848, 706840, 758560, 777524, 971905, 1130944, 1213696, 1413680, 1517120, 1555048, 1943810, 2261888, 2827360, 3034240, 3110096, 3887620, 4523776, 5654720, 6068480, 6220192, 7775240, 11309440, 12440384, 15550480, 22618880, 24880768, 31100960, 49761536, 62201920, 124403840, 248807680]

約数ペア:

[(1, 248807680), (2, 124403840), (4, 62201920), (5, 49761536), (8, 31100960), (10, 24880768), (11, 22618880), (16, 15550480), (20, 12440384), (22, 11309440), (32, 7775240), (40, 6220192), (41, 6068480), (44, 5654720), (55, 4523776), (64, 3887620), (80, 3110096), (82, 3034240), (88, 2827360), (110, 2261888), (128, 1943810), (160, 1555048), (164, 1517120), (176, 1413680), (205, 1213696), (220, 1130944), (256, 971905), (320, 777524), (328, 758560), (352, 706840), (410, 606848), (431, 577280), (440, 565472), (451, 551680), (640, 388762), (656, 379280), (704, 353420), (820, 303424), (862, 288640), (880, 282736), (902, 275840), (1280, 194381), (1312, 189640), (1408, 176710), (1640, 151712), (1724, 144320), (1760, 141368), (1804, 137920), (2155, 115456), (2255, 110336), (2624, 94820), (2816, 88355), (3280, 75856), (3448, 72160), (3520, 70684), (3608, 68960), (4310, 57728), (4510, 55168), (4741, 52480), (5248, 47410), (6560, 37928), (6896, 36080), (7040, 35342), (7216, 34480), (8620, 28864), (9020, 27584), (9482, 26240), (10496, 23705), (13120, 18964), (13792, 18040), (14080, 17671), (14432, 17240)]