81534390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{388259}}^1$

素因数の和:388276

約数の個数: 32

約数和(自身を含む): 223637760

約数和(自身を除く): 142103370

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 388259, 776518, 1164777, 1941295, 2329554, 2717813, 3882590, 5435626, 5823885, 8153439, 11647770, 13589065, 16306878, 27178130, 40767195, 81534390]

約数ペア:

[(1, 81534390), (2, 40767195), (3, 27178130), (5, 16306878), (6, 13589065), (7, 11647770), (10, 8153439), (14, 5823885), (15, 5435626), (21, 3882590), (30, 2717813), (35, 2329554), (42, 1941295), (70, 1164777), (105, 776518), (210, 388259)]