18388480

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{653}}^1$

素因数の和:687

約数の個数: 80

約数和(自身を含む): 48171024

約数和(自身を除く): 29782544

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, 653, 704, 880, 1280, 1306, 1408, 1760, 2560, 2612, 2816, 3265, 3520, 5224, 5632, 6530, 7040, 7183, 10448, 13060, 14080, 14366, 20896, 26120, 28160, 28732, 35915, 41792, 52240, 57464, 71830, 83584, 104480, 114928, 143660, 167168, 208960, 229856, 287320, 334336, 417920, 459712, 574640, 835840, 919424, 1149280, 1671680, 1838848, 2298560, 3677696, 4597120, 9194240, 18388480]

約数ペア:

[(1, 18388480), (2, 9194240), (4, 4597120), (5, 3677696), (8, 2298560), (10, 1838848), (11, 1671680), (16, 1149280), (20, 919424), (22, 835840), (32, 574640), (40, 459712), (44, 417920), (55, 334336), (64, 287320), (80, 229856), (88, 208960), (110, 167168), (128, 143660), (160, 114928), (176, 104480), (220, 83584), (256, 71830), (320, 57464), (352, 52240), (440, 41792), (512, 35915), (640, 28732), (653, 28160), (704, 26120), (880, 20896), (1280, 14366), (1306, 14080), (1408, 13060), (1760, 10448), (2560, 7183), (2612, 7040), (2816, 6530), (3265, 5632), (3520, 5224)]