30887984

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:405

約数の個数: 40

約数和(自身を含む): 61380000

約数和(自身を除く): 30492016

約数列:

[1, 2, 4, 8, 16, 89, 109, 178, 199, 218, 356, 398, 436, 712, 796, 872, 1424, 1592, 1744, 3184, 9701, 17711, 19402, 21691, 35422, 38804, 43382, 70844, 77608, 86764, 141688, 155216, 173528, 283376, 347056, 1930499, 3860998, 7721996, 15443992, 30887984]

約数ペア:

[(1, 30887984), (2, 15443992), (4, 7721996), (8, 3860998), (16, 1930499), (89, 347056), (109, 283376), (178, 173528), (199, 155216), (218, 141688), (356, 86764), (398, 77608), (436, 70844), (712, 43382), (796, 38804), (872, 35422), (1424, 21691), (1592, 19402), (1744, 17711), (3184, 9701)]