20015015

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{479}}^1$

素因数の和:682

約数の個数: 16

約数和(自身を含む): 24641280

約数和(自身を除く): 4626265

約数列:

[1, 5, 61, 137, 305, 479, 685, 2395, 8357, 29219, 41785, 65623, 146095, 328115, 4003003, 20015015]

約数ペア:

[(1, 20015015), (5, 4003003), (61, 328115), (137, 146095), (305, 65623), (479, 41785), (685, 29219), (2395, 8357)]