89955520

素因数分解:

$2^6\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2579}}^1$

素因数の和:2705

約数の個数: 56

約数和(自身を含む): 216255600

約数和(自身を除く): 126300080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 160, 218, 320, 436, 545, 872, 1090, 1744, 2180, 2579, 3488, 4360, 5158, 6976, 8720, 10316, 12895, 17440, 20632, 25790, 34880, 41264, 51580, 82528, 103160, 165056, 206320, 281111, 412640, 562222, 825280, 1124444, 1405555, 2248888, 2811110, 4497776, 5622220, 8995552, 11244440, 17991104, 22488880, 44977760, 89955520]

約数ペア:

[(1, 89955520), (2, 44977760), (4, 22488880), (5, 17991104), (8, 11244440), (10, 8995552), (16, 5622220), (20, 4497776), (32, 2811110), (40, 2248888), (64, 1405555), (80, 1124444), (109, 825280), (160, 562222), (218, 412640), (320, 281111), (436, 206320), (545, 165056), (872, 103160), (1090, 82528), (1744, 51580), (2180, 41264), (2579, 34880), (3488, 25790), (4360, 20632), (5158, 17440), (6976, 12895), (8720, 10316)]