161728385

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{5827}}^1$

素因数の和:5913

約数の個数: 32

約数和(自身を含む): 242817792

約数和(自身を除く): 81089407

約数列:

[1, 5, 7, 13, 35, 61, 65, 91, 305, 427, 455, 793, 2135, 3965, 5551, 5827, 27755, 29135, 40789, 75751, 203945, 355447, 378755, 530257, 1777235, 2488129, 2651285, 4620811, 12440645, 23104055, 32345677, 161728385]

約数ペア:

[(1, 161728385), (5, 32345677), (7, 23104055), (13, 12440645), (35, 4620811), (61, 2651285), (65, 2488129), (91, 1777235), (305, 530257), (427, 378755), (455, 355447), (793, 203945), (2135, 75751), (3965, 40789), (5551, 29135), (5827, 27755)]