25314640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{241}}^1$

素因数の和:368

約数の個数: 80

約数和(自身を含む): 64277136

約数和(自身を除く): 38962496

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 101, 104, 130, 202, 208, 241, 260, 404, 482, 505, 520, 808, 964, 1010, 1040, 1205, 1313, 1616, 1928, 2020, 2410, 2626, 3133, 3856, 4040, 4820, 5252, 6266, 6565, 8080, 9640, 10504, 12532, 13130, 15665, 19280, 21008, 24341, 25064, 26260, 31330, 48682, 50128, 52520, 62660, 97364, 105040, 121705, 125320, 194728, 243410, 250640, 316433, 389456, 486820, 632866, 973640, 1265732, 1582165, 1947280, 2531464, 3164330, 5062928, 6328660, 12657320, 25314640]

約数ペア:

[(1, 25314640), (2, 12657320), (4, 6328660), (5, 5062928), (8, 3164330), (10, 2531464), (13, 1947280), (16, 1582165), (20, 1265732), (26, 973640), (40, 632866), (52, 486820), (65, 389456), (80, 316433), (101, 250640), (104, 243410), (130, 194728), (202, 125320), (208, 121705), (241, 105040), (260, 97364), (404, 62660), (482, 52520), (505, 50128), (520, 48682), (808, 31330), (964, 26260), (1010, 25064), (1040, 24341), (1205, 21008), (1313, 19280), (1616, 15665), (1928, 13130), (2020, 12532), (2410, 10504), (2626, 9640), (3133, 8080), (3856, 6565), (4040, 6266), (4820, 5252)]