155971720

素因数分解:

$2^3\times 5^1\times {\mathrm{613}}^1\times {\mathrm{6361}}^1$

素因数の和:6985

約数の個数: 32

約数和(自身を含む): 351564120

約数和(自身を除く): 195592400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 613, 1226, 2452, 3065, 4904, 6130, 6361, 12260, 12722, 24520, 25444, 31805, 50888, 63610, 127220, 254440, 3899293, 7798586, 15597172, 19496465, 31194344, 38992930, 77985860, 155971720]

約数ペア:

[(1, 155971720), (2, 77985860), (4, 38992930), (5, 31194344), (8, 19496465), (10, 15597172), (20, 7798586), (40, 3899293), (613, 254440), (1226, 127220), (2452, 63610), (3065, 50888), (4904, 31805), (6130, 25444), (6361, 24520), (12260, 12722)]