66988360

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{6949}}^1$

素因数の和:7201

約数の個数: 32

約数和(自身を含む): 151371000

約数和(自身を除く): 84382640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 6949, 9640, 13898, 27796, 34745, 55592, 69490, 138980, 277960, 1674709, 3349418, 6698836, 8373545, 13397672, 16747090, 33494180, 66988360]

約数ペア:

[(1, 66988360), (2, 33494180), (4, 16747090), (5, 13397672), (8, 8373545), (10, 6698836), (20, 3349418), (40, 1674709), (241, 277960), (482, 138980), (964, 69490), (1205, 55592), (1928, 34745), (2410, 27796), (4820, 13898), (6949, 9640)]