129628520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{66137}}^1$

素因数の和:66162

約数の個数: 48

約数和(自身を含む): 339287940

約数和(自身を除く): 209659420

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 66137, 132274, 264548, 330685, 462959, 529096, 661370, 925918, 1322740, 1851836, 2314795, 2645480, 3240713, 3703672, 4629590, 6481426, 9259180, 12962852, 16203565, 18518360, 25925704, 32407130, 64814260, 129628520]

約数ペア:

[(1, 129628520), (2, 64814260), (4, 32407130), (5, 25925704), (7, 18518360), (8, 16203565), (10, 12962852), (14, 9259180), (20, 6481426), (28, 4629590), (35, 3703672), (40, 3240713), (49, 2645480), (56, 2314795), (70, 1851836), (98, 1322740), (140, 925918), (196, 661370), (245, 529096), (280, 462959), (392, 330685), (490, 264548), (980, 132274), (1960, 66137)]