18205440

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1$

素因数の和:466

約数の個数: 144

約数和(自身を含む): 63576576

約数和(自身を除く): 45371136

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 128, 132, 160, 165, 176, 192, 220, 240, 256, 264, 320, 330, 352, 384, 431, 440, 480, 528, 640, 660, 704, 768, 862, 880, 960, 1056, 1280, 1293, 1320, 1408, 1724, 1760, 1920, 2112, 2155, 2586, 2640, 2816, 3448, 3520, 3840, 4224, 4310, 4741, 5172, 5280, 6465, 6896, 7040, 8448, 8620, 9482, 10344, 10560, 12930, 13792, 14080, 14223, 17240, 18964, 20688, 21120, 23705, 25860, 27584, 28446, 34480, 37928, 41376, 42240, 47410, 51720, 55168, 56892, 68960, 71115, 75856, 82752, 94820, 103440, 110336, 113784, 137920, 142230, 151712, 165504, 189640, 206880, 227568, 275840, 284460, 303424, 331008, 379280, 413760, 455136, 551680, 568920, 606848, 758560, 827520, 910272, 1137840, 1213696, 1517120, 1655040, 1820544, 2275680, 3034240, 3641088, 4551360, 6068480, 9102720, 18205440]

約数ペア:

[(1, 18205440), (2, 9102720), (3, 6068480), (4, 4551360), (5, 3641088), (6, 3034240), (8, 2275680), (10, 1820544), (11, 1655040), (12, 1517120), (15, 1213696), (16, 1137840), (20, 910272), (22, 827520), (24, 758560), (30, 606848), (32, 568920), (33, 551680), (40, 455136), (44, 413760), (48, 379280), (55, 331008), (60, 303424), (64, 284460), (66, 275840), (80, 227568), (88, 206880), (96, 189640), (110, 165504), (120, 151712), (128, 142230), (132, 137920), (160, 113784), (165, 110336), (176, 103440), (192, 94820), (220, 82752), (240, 75856), (256, 71115), (264, 68960), (320, 56892), (330, 55168), (352, 51720), (384, 47410), (431, 42240), (440, 41376), (480, 37928), (528, 34480), (640, 28446), (660, 27584), (704, 25860), (768, 23705), (862, 21120), (880, 20688), (960, 18964), (1056, 17240), (1280, 14223), (1293, 14080), (1320, 13792), (1408, 12930), (1724, 10560), (1760, 10344), (1920, 9482), (2112, 8620), (2155, 8448), (2586, 7040), (2640, 6896), (2816, 6465), (3448, 5280), (3520, 5172), (3840, 4741), (4224, 4310)]