81156240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10247}}^1$

素因数の和:10277

約数の個数: 120

約数和(自身を含む): 297355968

約数和(自身を除く): 216199728

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 3960, 7920, 10247, 20494, 30741, 40988, 51235, 61482, 81976, 92223, 102470, 112717, 122964, 153705, 163952, 184446, 204940, 225434, 245928, 307410, 338151, 368892, 409880, 450868, 461115, 491856, 563585, 614820, 676302, 737784, 819760, 901736, 922230, 1014453, 1127170, 1229640, 1352604, 1475568, 1690755, 1803472, 1844460, 2028906, 2254340, 2459280, 2705208, 3381510, 3688920, 4057812, 4508680, 5072265, 5410416, 6763020, 7377840, 8115624, 9017360, 10144530, 13526040, 16231248, 20289060, 27052080, 40578120, 81156240]

約数ペア:

[(1, 81156240), (2, 40578120), (3, 27052080), (4, 20289060), (5, 16231248), (6, 13526040), (8, 10144530), (9, 9017360), (10, 8115624), (11, 7377840), (12, 6763020), (15, 5410416), (16, 5072265), (18, 4508680), (20, 4057812), (22, 3688920), (24, 3381510), (30, 2705208), (33, 2459280), (36, 2254340), (40, 2028906), (44, 1844460), (45, 1803472), (48, 1690755), (55, 1475568), (60, 1352604), (66, 1229640), (72, 1127170), (80, 1014453), (88, 922230), (90, 901736), (99, 819760), (110, 737784), (120, 676302), (132, 614820), (144, 563585), (165, 491856), (176, 461115), (180, 450868), (198, 409880), (220, 368892), (240, 338151), (264, 307410), (330, 245928), (360, 225434), (396, 204940), (440, 184446), (495, 163952), (528, 153705), (660, 122964), (720, 112717), (792, 102470), (880, 92223), (990, 81976), (1320, 61482), (1584, 51235), (1980, 40988), (2640, 30741), (3960, 20494), (7920, 10247)]