385356880

素因数分解:

$2^4\times 5^1\times {\mathrm{691}}^1\times {\mathrm{6971}}^1$

素因数の和:7675

約数の個数: 40

約数和(自身を含む): 897380064

約数和(自身を除く): 512023184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 691, 1382, 2764, 3455, 5528, 6910, 6971, 11056, 13820, 13942, 27640, 27884, 34855, 55280, 55768, 69710, 111536, 139420, 278840, 557680, 4816961, 9633922, 19267844, 24084805, 38535688, 48169610, 77071376, 96339220, 192678440, 385356880]

約数ペア:

[(1, 385356880), (2, 192678440), (4, 96339220), (5, 77071376), (8, 48169610), (10, 38535688), (16, 24084805), (20, 19267844), (40, 9633922), (80, 4816961), (691, 557680), (1382, 278840), (2764, 139420), (3455, 111536), (5528, 69710), (6910, 55768), (6971, 55280), (11056, 34855), (13820, 27884), (13942, 27640)]