25675520

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1543}}^1$

素因数の和:1577

約数の個数: 72

約数和(自身を含む): 66274656

約数和(自身を除く): 40599136

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1543, 1664, 2080, 3086, 3328, 4160, 6172, 7715, 8320, 12344, 15430, 16640, 20059, 24688, 30860, 40118, 49376, 61720, 80236, 98752, 100295, 123440, 160472, 197504, 200590, 246880, 320944, 395008, 401180, 493760, 641888, 802360, 987520, 1283776, 1604720, 1975040, 2567552, 3209440, 5135104, 6418880, 12837760, 25675520]

約数ペア:

[(1, 25675520), (2, 12837760), (4, 6418880), (5, 5135104), (8, 3209440), (10, 2567552), (13, 1975040), (16, 1604720), (20, 1283776), (26, 987520), (32, 802360), (40, 641888), (52, 493760), (64, 401180), (65, 395008), (80, 320944), (104, 246880), (128, 200590), (130, 197504), (160, 160472), (208, 123440), (256, 100295), (260, 98752), (320, 80236), (416, 61720), (520, 49376), (640, 40118), (832, 30860), (1040, 24688), (1280, 20059), (1543, 16640), (1664, 15430), (2080, 12344), (3086, 8320), (3328, 7715), (4160, 6172)]