320420065

素因数分解:

$5^1\times 7^2\times {\mathrm{359}}^1\times {\mathrm{3643}}^1$

素因数の和:4021

約数の個数: 24

約数和(自身を含む): 448649280

約数和(自身を除く): 128229215

約数列:

[1, 5, 7, 35, 49, 245, 359, 1795, 2513, 3643, 12565, 17591, 18215, 25501, 87955, 127505, 178507, 892535, 1307837, 6539185, 9154859, 45774295, 64084013, 320420065]

約数ペア:

[(1, 320420065), (5, 64084013), (7, 45774295), (35, 9154859), (49, 6539185), (245, 1307837), (359, 892535), (1795, 178507), (2513, 127505), (3643, 87955), (12565, 25501), (17591, 18215)]