2005128320

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{601}}^1$

素因数の和:1034

約数の個数: 128

約数和(自身を含む): 5183725680

約数和(自身を除く): 3178597360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 401, 416, 520, 601, 640, 802, 832, 1040, 1202, 1604, 1664, 2005, 2080, 2404, 3005, 3208, 4010, 4160, 4808, 5213, 6010, 6416, 7813, 8020, 8320, 9616, 10426, 12020, 12832, 15626, 16040, 19232, 20852, 24040, 25664, 26065, 31252, 32080, 38464, 39065, 41704, 48080, 51328, 52130, 62504, 64160, 76928, 78130, 83408, 96160, 104260, 125008, 128320, 156260, 166816, 192320, 208520, 241001, 250016, 256640, 312520, 333632, 384640, 417040, 482002, 500032, 625040, 667264, 834080, 964004, 1000064, 1205005, 1250080, 1668160, 1928008, 2410010, 2500160, 3133013, 3336320, 3856016, 4820020, 5000320, 6266026, 7712032, 9640040, 12532052, 15424064, 15665065, 19280080, 25064104, 30848128, 31330130, 38560160, 50128208, 62660260, 77120320, 100256416, 125320520, 154240640, 200512832, 250641040, 401025664, 501282080, 1002564160, 2005128320]

約数ペア:

[(1, 2005128320), (2, 1002564160), (4, 501282080), (5, 401025664), (8, 250641040), (10, 200512832), (13, 154240640), (16, 125320520), (20, 100256416), (26, 77120320), (32, 62660260), (40, 50128208), (52, 38560160), (64, 31330130), (65, 30848128), (80, 25064104), (104, 19280080), (128, 15665065), (130, 15424064), (160, 12532052), (208, 9640040), (260, 7712032), (320, 6266026), (401, 5000320), (416, 4820020), (520, 3856016), (601, 3336320), (640, 3133013), (802, 2500160), (832, 2410010), (1040, 1928008), (1202, 1668160), (1604, 1250080), (1664, 1205005), (2005, 1000064), (2080, 964004), (2404, 834080), (3005, 667264), (3208, 625040), (4010, 500032), (4160, 482002), (4808, 417040), (5213, 384640), (6010, 333632), (6416, 312520), (7813, 256640), (8020, 250016), (8320, 241001), (9616, 208520), (10426, 192320), (12020, 166816), (12832, 156260), (15626, 128320), (16040, 125008), (19232, 104260), (20852, 96160), (24040, 83408), (25664, 78130), (26065, 76928), (31252, 64160), (32080, 62504), (38464, 52130), (39065, 51328), (41704, 48080)]