51449840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{811}}^1$

素因数の和:898

約数の個数: 80

約数和(自身を含む): 131095776

約数和(自身を除く): 79645936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 208, 244, 260, 305, 488, 520, 610, 793, 811, 976, 1040, 1220, 1586, 1622, 2440, 3172, 3244, 3965, 4055, 4880, 6344, 6488, 7930, 8110, 10543, 12688, 12976, 15860, 16220, 21086, 31720, 32440, 42172, 49471, 52715, 63440, 64880, 84344, 98942, 105430, 168688, 197884, 210860, 247355, 395768, 421720, 494710, 643123, 791536, 843440, 989420, 1286246, 1978840, 2572492, 3215615, 3957680, 5144984, 6431230, 10289968, 12862460, 25724920, 51449840]

約数ペア:

[(1, 51449840), (2, 25724920), (4, 12862460), (5, 10289968), (8, 6431230), (10, 5144984), (13, 3957680), (16, 3215615), (20, 2572492), (26, 1978840), (40, 1286246), (52, 989420), (61, 843440), (65, 791536), (80, 643123), (104, 494710), (122, 421720), (130, 395768), (208, 247355), (244, 210860), (260, 197884), (305, 168688), (488, 105430), (520, 98942), (610, 84344), (793, 64880), (811, 63440), (976, 52715), (1040, 49471), (1220, 42172), (1586, 32440), (1622, 31720), (2440, 21086), (3172, 16220), (3244, 15860), (3965, 12976), (4055, 12688), (4880, 10543), (6344, 8110), (6488, 7930)]