25481900

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 58183776

約数和(自身を除く): 32701876

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 71, 74, 97, 100, 142, 148, 185, 194, 284, 355, 370, 388, 485, 710, 740, 925, 970, 1420, 1775, 1850, 1940, 2425, 2627, 3550, 3589, 3700, 4850, 5254, 6887, 7100, 7178, 9700, 10508, 13135, 13774, 14356, 17945, 26270, 27548, 34435, 35890, 52540, 65675, 68870, 71780, 89725, 131350, 137740, 172175, 179450, 254819, 262700, 344350, 358900, 509638, 688700, 1019276, 1274095, 2548190, 5096380, 6370475, 12740950, 25481900]

約数ペア:

[(1, 25481900), (2, 12740950), (4, 6370475), (5, 5096380), (10, 2548190), (20, 1274095), (25, 1019276), (37, 688700), (50, 509638), (71, 358900), (74, 344350), (97, 262700), (100, 254819), (142, 179450), (148, 172175), (185, 137740), (194, 131350), (284, 89725), (355, 71780), (370, 68870), (388, 65675), (485, 52540), (710, 35890), (740, 34435), (925, 27548), (970, 26270), (1420, 17945), (1775, 14356), (1850, 13774), (1940, 13135), (2425, 10508), (2627, 9700), (3550, 7178), (3589, 7100), (3700, 6887), (4850, 5254)]