256430900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{2063}}^1$

素因数の和:2201

約数の個数: 72

約数和(自身を含む): 612710784

約数和(自身を除く): 356279884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 113, 220, 226, 275, 452, 550, 565, 1100, 1130, 1243, 2063, 2260, 2486, 2825, 4126, 4972, 5650, 6215, 8252, 10315, 11300, 12430, 20630, 22693, 24860, 31075, 41260, 45386, 51575, 62150, 90772, 103150, 113465, 124300, 206300, 226930, 233119, 453860, 466238, 567325, 932476, 1134650, 1165595, 2269300, 2331190, 2564309, 4662380, 5128618, 5827975, 10257236, 11655950, 12821545, 23311900, 25643090, 51286180, 64107725, 128215450, 256430900]

約数ペア:

[(1, 256430900), (2, 128215450), (4, 64107725), (5, 51286180), (10, 25643090), (11, 23311900), (20, 12821545), (22, 11655950), (25, 10257236), (44, 5827975), (50, 5128618), (55, 4662380), (100, 2564309), (110, 2331190), (113, 2269300), (220, 1165595), (226, 1134650), (275, 932476), (452, 567325), (550, 466238), (565, 453860), (1100, 233119), (1130, 226930), (1243, 206300), (2063, 124300), (2260, 113465), (2486, 103150), (2825, 90772), (4126, 62150), (4972, 51575), (5650, 45386), (6215, 41260), (8252, 31075), (10315, 24860), (11300, 22693), (12430, 20630)]