28676415

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{421}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 48614400

約数和(自身を除く): 19937985

約数列:

[1, 3, 5, 15, 19, 57, 95, 239, 285, 421, 717, 1195, 1263, 2105, 3585, 4541, 6315, 7999, 13623, 22705, 23997, 39995, 68115, 100619, 119985, 301857, 503095, 1509285, 1911761, 5735283, 9558805, 28676415]

約数ペア:

[(1, 28676415), (3, 9558805), (5, 5735283), (15, 1911761), (19, 1509285), (57, 503095), (95, 301857), (239, 119985), (285, 100619), (421, 68115), (717, 39995), (1195, 23997), (1263, 22705), (2105, 13623), (3585, 7999), (4541, 6315)]