25386760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1277}}^1$

素因数の和:1366

約数の個数: 64

約数和(自身を含む): 66251520

約数和(自身を除く): 40864760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1277, 1420, 1988, 2485, 2554, 2840, 3976, 4970, 5108, 6385, 8939, 9940, 10216, 12770, 17878, 19880, 25540, 35756, 44695, 51080, 71512, 89390, 90667, 178780, 181334, 357560, 362668, 453335, 634669, 725336, 906670, 1269338, 1813340, 2538676, 3173345, 3626680, 5077352, 6346690, 12693380, 25386760]

約数ペア:

[(1, 25386760), (2, 12693380), (4, 6346690), (5, 5077352), (7, 3626680), (8, 3173345), (10, 2538676), (14, 1813340), (20, 1269338), (28, 906670), (35, 725336), (40, 634669), (56, 453335), (70, 362668), (71, 357560), (140, 181334), (142, 178780), (280, 90667), (284, 89390), (355, 71512), (497, 51080), (568, 44695), (710, 35756), (994, 25540), (1277, 19880), (1420, 17878), (1988, 12770), (2485, 10216), (2554, 9940), (2840, 8939), (3976, 6385), (4970, 5108)]