2080291280

素因数分解:

$2^4\times 5^1\times {\mathrm{349}}^1\times {\mathrm{74509}}^1$

素因数の和:74871

約数の個数: 40

約数和(自身を含む): 4850601000

約数和(自身を除く): 2770309720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 349, 698, 1396, 1745, 2792, 3490, 5584, 6980, 13960, 27920, 74509, 149018, 298036, 372545, 596072, 745090, 1192144, 1490180, 2980360, 5960720, 26003641, 52007282, 104014564, 130018205, 208029128, 260036410, 416058256, 520072820, 1040145640, 2080291280]

約数ペア:

[(1, 2080291280), (2, 1040145640), (4, 520072820), (5, 416058256), (8, 260036410), (10, 208029128), (16, 130018205), (20, 104014564), (40, 52007282), (80, 26003641), (349, 5960720), (698, 2980360), (1396, 1490180), (1745, 1192144), (2792, 745090), (3490, 596072), (5584, 372545), (6980, 298036), (13960, 149018), (27920, 74509)]