81231360

素因数分解:

$2^9\times 3^1\times 5^1\times 7^1\times {\mathrm{1511}}^1$

素因数の和:1544

約数の個数: 160

約数和(自身を含む): 296980992

約数和(自身を除く): 215749632

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 512, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1511, 1536, 1680, 1792, 1920, 2240, 2560, 2688, 3022, 3360, 3584, 3840, 4480, 4533, 5376, 6044, 6720, 7555, 7680, 8960, 9066, 10577, 10752, 12088, 13440, 15110, 17920, 18132, 21154, 22665, 24176, 26880, 30220, 31731, 36264, 42308, 45330, 48352, 52885, 53760, 60440, 63462, 72528, 84616, 90660, 96704, 105770, 120880, 126924, 145056, 158655, 169232, 181320, 193408, 211540, 241760, 253848, 290112, 317310, 338464, 362640, 386816, 423080, 483520, 507696, 580224, 634620, 676928, 725280, 773632, 846160, 967040, 1015392, 1160448, 1269240, 1353856, 1450560, 1692320, 1934080, 2030784, 2320896, 2538480, 2707712, 2901120, 3384640, 3868160, 4061568, 5076960, 5415424, 5802240, 6769280, 8123136, 10153920, 11604480, 13538560, 16246272, 20307840, 27077120, 40615680, 81231360]

約数ペア:

[(1, 81231360), (2, 40615680), (3, 27077120), (4, 20307840), (5, 16246272), (6, 13538560), (7, 11604480), (8, 10153920), (10, 8123136), (12, 6769280), (14, 5802240), (15, 5415424), (16, 5076960), (20, 4061568), (21, 3868160), (24, 3384640), (28, 2901120), (30, 2707712), (32, 2538480), (35, 2320896), (40, 2030784), (42, 1934080), (48, 1692320), (56, 1450560), (60, 1353856), (64, 1269240), (70, 1160448), (80, 1015392), (84, 967040), (96, 846160), (105, 773632), (112, 725280), (120, 676928), (128, 634620), (140, 580224), (160, 507696), (168, 483520), (192, 423080), (210, 386816), (224, 362640), (240, 338464), (256, 317310), (280, 290112), (320, 253848), (336, 241760), (384, 211540), (420, 193408), (448, 181320), (480, 169232), (512, 158655), (560, 145056), (640, 126924), (672, 120880), (768, 105770), (840, 96704), (896, 90660), (960, 84616), (1120, 72528), (1280, 63462), (1344, 60440), (1511, 53760), (1536, 52885), (1680, 48352), (1792, 45330), (1920, 42308), (2240, 36264), (2560, 31731), (2688, 30220), (3022, 26880), (3360, 24176), (3584, 22665), (3840, 21154), (4480, 18132), (4533, 17920), (5376, 15110), (6044, 13440), (6720, 12088), (7555, 10752), (7680, 10577), (8960, 9066)]