25379680

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1249}}^1$

素因数の和:1391

約数の個数: 48

約数和(自身を含む): 60480000

約数和(自身を除く): 35100320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1249, 1270, 2032, 2498, 2540, 4064, 4996, 5080, 6245, 9992, 10160, 12490, 19984, 20320, 24980, 39968, 49960, 99920, 158623, 199840, 317246, 634492, 793115, 1268984, 1586230, 2537968, 3172460, 5075936, 6344920, 12689840, 25379680]

約数ペア:

[(1, 25379680), (2, 12689840), (4, 6344920), (5, 5075936), (8, 3172460), (10, 2537968), (16, 1586230), (20, 1268984), (32, 793115), (40, 634492), (80, 317246), (127, 199840), (160, 158623), (254, 99920), (508, 49960), (635, 39968), (1016, 24980), (1249, 20320), (1270, 19984), (2032, 12490), (2498, 10160), (2540, 9992), (4064, 6245), (4996, 5080)]