81053720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4493}}^1$

素因数の和:4556

約数の個数: 64

約数和(自身を含む): 203847840

約数和(自身を除く): 122794120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 205, 220, 328, 410, 440, 451, 820, 902, 1640, 1804, 2255, 3608, 4493, 4510, 8986, 9020, 17972, 18040, 22465, 35944, 44930, 49423, 89860, 98846, 179720, 184213, 197692, 247115, 368426, 395384, 494230, 736852, 921065, 988460, 1473704, 1842130, 1976920, 2026343, 3684260, 4052686, 7368520, 8105372, 10131715, 16210744, 20263430, 40526860, 81053720]

約数ペア:

[(1, 81053720), (2, 40526860), (4, 20263430), (5, 16210744), (8, 10131715), (10, 8105372), (11, 7368520), (20, 4052686), (22, 3684260), (40, 2026343), (41, 1976920), (44, 1842130), (55, 1473704), (82, 988460), (88, 921065), (110, 736852), (164, 494230), (205, 395384), (220, 368426), (328, 247115), (410, 197692), (440, 184213), (451, 179720), (820, 98846), (902, 89860), (1640, 49423), (1804, 44930), (2255, 35944), (3608, 22465), (4493, 18040), (4510, 17972), (8986, 9020)]