81645840

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{37799}}^1$

素因数の和:37821

約数の個数: 80

約数和(自身を含む): 281232000

約数和(自身を除く): 199586160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 37799, 75598, 113397, 151196, 188995, 226794, 302392, 340191, 377990, 453588, 566985, 604784, 680382, 755980, 907176, 1020573, 1133970, 1360764, 1511960, 1700955, 1814352, 2041146, 2267940, 2721528, 3023920, 3401910, 4082292, 4535880, 5102865, 5443056, 6803820, 8164584, 9071760, 10205730, 13607640, 16329168, 20411460, 27215280, 40822920, 81645840]

約数ペア:

[(1, 81645840), (2, 40822920), (3, 27215280), (4, 20411460), (5, 16329168), (6, 13607640), (8, 10205730), (9, 9071760), (10, 8164584), (12, 6803820), (15, 5443056), (16, 5102865), (18, 4535880), (20, 4082292), (24, 3401910), (27, 3023920), (30, 2721528), (36, 2267940), (40, 2041146), (45, 1814352), (48, 1700955), (54, 1511960), (60, 1360764), (72, 1133970), (80, 1020573), (90, 907176), (108, 755980), (120, 680382), (135, 604784), (144, 566985), (180, 453588), (216, 377990), (240, 340191), (270, 302392), (360, 226794), (432, 188995), (540, 151196), (720, 113397), (1080, 75598), (2160, 37799)]