391010284

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{123581}}^1$

素因数の和:123705

約数の個数: 24

約数和(自身を含む): 788947488

約数和(自身を除く): 397937204

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 123581, 247162, 494324, 865067, 1730134, 3460268, 13964653, 27929306, 55858612, 97752571, 195505142, 391010284]

約数ペア:

[(1, 391010284), (2, 195505142), (4, 97752571), (7, 55858612), (14, 27929306), (28, 13964653), (113, 3460268), (226, 1730134), (452, 865067), (791, 494324), (1582, 247162), (3164, 123581)]