102440000

素因数分解:

$2^6\times 5^4\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:242

約数の個数: 140

約数和(自身を含む): 274946364

約数和(自身を除く): 172506364

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 130, 160, 197, 200, 208, 250, 260, 320, 325, 394, 400, 416, 500, 520, 625, 650, 788, 800, 832, 985, 1000, 1040, 1250, 1300, 1576, 1600, 1625, 1970, 2000, 2080, 2500, 2561, 2600, 3152, 3250, 3940, 4000, 4160, 4925, 5000, 5122, 5200, 6304, 6500, 7880, 8000, 8125, 9850, 10000, 10244, 10400, 12608, 12805, 13000, 15760, 16250, 19700, 20000, 20488, 20800, 24625, 25610, 26000, 31520, 32500, 39400, 40000, 40976, 49250, 51220, 52000, 63040, 64025, 65000, 78800, 81952, 98500, 102440, 104000, 123125, 128050, 130000, 157600, 163904, 197000, 204880, 246250, 256100, 260000, 315200, 320125, 394000, 409760, 492500, 512200, 520000, 640250, 788000, 819520, 985000, 1024400, 1280500, 1576000, 1600625, 1970000, 2048800, 2561000, 3201250, 3940000, 4097600, 5122000, 6402500, 7880000, 10244000, 12805000, 20488000, 25610000, 51220000, 102440000]

約数ペア:

[(1, 102440000), (2, 51220000), (4, 25610000), (5, 20488000), (8, 12805000), (10, 10244000), (13, 7880000), (16, 6402500), (20, 5122000), (25, 4097600), (26, 3940000), (32, 3201250), (40, 2561000), (50, 2048800), (52, 1970000), (64, 1600625), (65, 1576000), (80, 1280500), (100, 1024400), (104, 985000), (125, 819520), (130, 788000), (160, 640250), (197, 520000), (200, 512200), (208, 492500), (250, 409760), (260, 394000), (320, 320125), (325, 315200), (394, 260000), (400, 256100), (416, 246250), (500, 204880), (520, 197000), (625, 163904), (650, 157600), (788, 130000), (800, 128050), (832, 123125), (985, 104000), (1000, 102440), (1040, 98500), (1250, 81952), (1300, 78800), (1576, 65000), (1600, 64025), (1625, 63040), (1970, 52000), (2000, 51220), (2080, 49250), (2500, 40976), (2561, 40000), (2600, 39400), (3152, 32500), (3250, 31520), (3940, 26000), (4000, 25610), (4160, 24625), (4925, 20800), (5000, 20488), (5122, 20000), (5200, 19700), (6304, 16250), (6500, 15760), (7880, 13000), (8000, 12805), (8125, 12608), (9850, 10400), (10000, 10244)]