18061440

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:454

約数の個数: 128

約数和(自身を含む): 60220800

約数和(自身を除く): 42159360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 115, 120, 128, 138, 160, 184, 192, 230, 240, 276, 320, 345, 368, 384, 409, 460, 480, 552, 640, 690, 736, 818, 920, 960, 1104, 1227, 1380, 1472, 1636, 1840, 1920, 2045, 2208, 2454, 2760, 2944, 3272, 3680, 4090, 4416, 4908, 5520, 6135, 6544, 7360, 8180, 8832, 9407, 9816, 11040, 12270, 13088, 14720, 16360, 18814, 19632, 22080, 24540, 26176, 28221, 32720, 37628, 39264, 44160, 47035, 49080, 52352, 56442, 65440, 75256, 78528, 94070, 98160, 112884, 130880, 141105, 150512, 157056, 188140, 196320, 225768, 261760, 282210, 301024, 376280, 392640, 451536, 564420, 602048, 752560, 785280, 903072, 1128840, 1204096, 1505120, 1806144, 2257680, 3010240, 3612288, 4515360, 6020480, 9030720, 18061440]

約数ペア:

[(1, 18061440), (2, 9030720), (3, 6020480), (4, 4515360), (5, 3612288), (6, 3010240), (8, 2257680), (10, 1806144), (12, 1505120), (15, 1204096), (16, 1128840), (20, 903072), (23, 785280), (24, 752560), (30, 602048), (32, 564420), (40, 451536), (46, 392640), (48, 376280), (60, 301024), (64, 282210), (69, 261760), (80, 225768), (92, 196320), (96, 188140), (115, 157056), (120, 150512), (128, 141105), (138, 130880), (160, 112884), (184, 98160), (192, 94070), (230, 78528), (240, 75256), (276, 65440), (320, 56442), (345, 52352), (368, 49080), (384, 47035), (409, 44160), (460, 39264), (480, 37628), (552, 32720), (640, 28221), (690, 26176), (736, 24540), (818, 22080), (920, 19632), (960, 18814), (1104, 16360), (1227, 14720), (1380, 13088), (1472, 12270), (1636, 11040), (1840, 9816), (1920, 9407), (2045, 8832), (2208, 8180), (2454, 7360), (2760, 6544), (2944, 6135), (3272, 5520), (3680, 4908), (4090, 4416)]