80999840

素因数分解:

$2^5\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1597}}^1$

素因数の和:1929

約数の個数: 48

約数和(自身を含む): 192085992

約数和(自身を除く): 111086152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 317, 634, 1268, 1585, 1597, 2536, 3170, 3194, 5072, 6340, 6388, 7985, 10144, 12680, 12776, 15970, 25360, 25552, 31940, 50720, 51104, 63880, 127760, 255520, 506249, 1012498, 2024996, 2531245, 4049992, 5062490, 8099984, 10124980, 16199968, 20249960, 40499920, 80999840]

約数ペア:

[(1, 80999840), (2, 40499920), (4, 20249960), (5, 16199968), (8, 10124980), (10, 8099984), (16, 5062490), (20, 4049992), (32, 2531245), (40, 2024996), (80, 1012498), (160, 506249), (317, 255520), (634, 127760), (1268, 63880), (1585, 51104), (1597, 50720), (2536, 31940), (3170, 25552), (3194, 25360), (5072, 15970), (6340, 12776), (6388, 12680), (7985, 10144)]