20261290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9337}}^1$

素因数の和:9382

約数の個数: 32

約数和(自身を含む): 43029504

約数和(自身を除く): 22768214

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9337, 18674, 46685, 65359, 93370, 130718, 289447, 326795, 578894, 653590, 1447235, 2026129, 2894470, 4052258, 10130645, 20261290]

約数ペア:

[(1, 20261290), (2, 10130645), (5, 4052258), (7, 2894470), (10, 2026129), (14, 1447235), (31, 653590), (35, 578894), (62, 326795), (70, 289447), (155, 130718), (217, 93370), (310, 65359), (434, 46685), (1085, 18674), (2170, 9337)]