20060720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8089}}^1$

素因数の和:8133

約数の個数: 40

約数和(自身を含む): 48151680

約数和(自身を除く): 28090960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8089, 16178, 32356, 40445, 64712, 80890, 129424, 161780, 250759, 323560, 501518, 647120, 1003036, 1253795, 2006072, 2507590, 4012144, 5015180, 10030360, 20060720]

約数ペア:

[(1, 20060720), (2, 10030360), (4, 5015180), (5, 4012144), (8, 2507590), (10, 2006072), (16, 1253795), (20, 1003036), (31, 647120), (40, 501518), (62, 323560), (80, 250759), (124, 161780), (155, 129424), (248, 80890), (310, 64712), (496, 40445), (620, 32356), (1240, 16178), (2480, 8089)]