81966720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3881}}^1$

素因数の和:3914

約数の個数: 128

約数和(自身を含む): 285094080

約数和(自身を除く): 203127360

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, 264, 320, 330, 352, 384, 440, 480, 528, 640, 660, 704, 880, 960, 1056, 1320, 1408, 1760, 1920, 2112, 2640, 3520, 3881, 4224, 5280, 7040, 7762, 10560, 11643, 15524, 19405, 21120, 23286, 31048, 38810, 42691, 46572, 58215, 62096, 77620, 85382, 93144, 116430, 124192, 128073, 155240, 170764, 186288, 213455, 232860, 248384, 256146, 310480, 341528, 372576, 426910, 465720, 496768, 512292, 620960, 640365, 683056, 745152, 853820, 931440, 1024584, 1241920, 1280730, 1366112, 1490304, 1707640, 1862880, 2049168, 2483840, 2561460, 2732224, 3415280, 3725760, 4098336, 5122920, 5464448, 6830560, 7451520, 8196672, 10245840, 13661120, 16393344, 20491680, 27322240, 40983360, 81966720]

約数ペア:

[(1, 81966720), (2, 40983360), (3, 27322240), (4, 20491680), (5, 16393344), (6, 13661120), (8, 10245840), (10, 8196672), (11, 7451520), (12, 6830560), (15, 5464448), (16, 5122920), (20, 4098336), (22, 3725760), (24, 3415280), (30, 2732224), (32, 2561460), (33, 2483840), (40, 2049168), (44, 1862880), (48, 1707640), (55, 1490304), (60, 1366112), (64, 1280730), (66, 1241920), (80, 1024584), (88, 931440), (96, 853820), (110, 745152), (120, 683056), (128, 640365), (132, 620960), (160, 512292), (165, 496768), (176, 465720), (192, 426910), (220, 372576), (240, 341528), (264, 310480), (320, 256146), (330, 248384), (352, 232860), (384, 213455), (440, 186288), (480, 170764), (528, 155240), (640, 128073), (660, 124192), (704, 116430), (880, 93144), (960, 85382), (1056, 77620), (1320, 62096), (1408, 58215), (1760, 46572), (1920, 42691), (2112, 38810), (2640, 31048), (3520, 23286), (3881, 21120), (4224, 19405), (5280, 15524), (7040, 11643), (7762, 10560)]