20301715

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:367

約数の個数: 32

約数和(自身を含む): 29176704

約数和(自身を除く): 8874989

約数列:

[1, 5, 7, 35, 37, 61, 185, 257, 259, 305, 427, 1285, 1295, 1799, 2135, 2257, 8995, 9509, 11285, 15677, 15799, 47545, 66563, 78385, 78995, 109739, 332815, 548695, 580049, 2900245, 4060343, 20301715]

約数ペア:

[(1, 20301715), (5, 4060343), (7, 2900245), (35, 580049), (37, 548695), (61, 332815), (185, 109739), (257, 78995), (259, 78385), (305, 66563), (427, 47545), (1285, 15799), (1295, 15677), (1799, 11285), (2135, 9509), (2257, 8995)]