81489320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{1109}}^1$

素因数の和:1298

約数の個数: 64

約数和(自身を含む): 201398400

約数和(自身を除く): 119909080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 167, 220, 334, 440, 668, 835, 1109, 1336, 1670, 1837, 2218, 3340, 3674, 4436, 5545, 6680, 7348, 8872, 9185, 11090, 12199, 14696, 18370, 22180, 24398, 36740, 44360, 48796, 60995, 73480, 97592, 121990, 185203, 243980, 370406, 487960, 740812, 926015, 1481624, 1852030, 2037233, 3704060, 4074466, 7408120, 8148932, 10186165, 16297864, 20372330, 40744660, 81489320]

約数ペア:

[(1, 81489320), (2, 40744660), (4, 20372330), (5, 16297864), (8, 10186165), (10, 8148932), (11, 7408120), (20, 4074466), (22, 3704060), (40, 2037233), (44, 1852030), (55, 1481624), (88, 926015), (110, 740812), (167, 487960), (220, 370406), (334, 243980), (440, 185203), (668, 121990), (835, 97592), (1109, 73480), (1336, 60995), (1670, 48796), (1837, 44360), (2218, 36740), (3340, 24398), (3674, 22180), (4436, 18370), (5545, 14696), (6680, 12199), (7348, 11090), (8872, 9185)]