161478520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{82387}}^1$

素因数の和:82412

約数の個数: 48

約数和(自身を含む): 422650440

約数和(自身を除く): 261171920

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, 82387, 164774, 329548, 411935, 576709, 659096, 823870, 1153418, 1647740, 2306836, 2883545, 3295480, 4036963, 4613672, 5767090, 8073926, 11534180, 16147852, 20184815, 23068360, 32295704, 40369630, 80739260, 161478520]

約数ペア:

[(1, 161478520), (2, 80739260), (4, 40369630), (5, 32295704), (7, 23068360), (8, 20184815), (10, 16147852), (14, 11534180), (20, 8073926), (28, 5767090), (35, 4613672), (40, 4036963), (49, 3295480), (56, 2883545), (70, 2306836), (98, 1647740), (140, 1153418), (196, 823870), (245, 659096), (280, 576709), (392, 411935), (490, 329548), (980, 164774), (1960, 82387)]