25115720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4721}}^1$

素因数の和:4758

約数の個数: 64

約数和(自身を含む): 67996800

約数和(自身を除く): 42881080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 4721, 5320, 9442, 18884, 23605, 33047, 37768, 47210, 66094, 89699, 94420, 132188, 165235, 179398, 188840, 264376, 330470, 358796, 448495, 627893, 660940, 717592, 896990, 1255786, 1321880, 1793980, 2511572, 3139465, 3587960, 5023144, 6278930, 12557860, 25115720]

約数ペア:

[(1, 25115720), (2, 12557860), (4, 6278930), (5, 5023144), (7, 3587960), (8, 3139465), (10, 2511572), (14, 1793980), (19, 1321880), (20, 1255786), (28, 896990), (35, 717592), (38, 660940), (40, 627893), (56, 448495), (70, 358796), (76, 330470), (95, 264376), (133, 188840), (140, 179398), (152, 165235), (190, 132188), (266, 94420), (280, 89699), (380, 66094), (532, 47210), (665, 37768), (760, 33047), (1064, 23605), (1330, 18884), (2660, 9442), (4721, 5320)]