400202012

素因数分解:

$2^2\times 7^2\times {\mathrm{211}}^1\times {\mathrm{9677}}^1$

素因数の和:9906

約数の個数: 36

約数和(自身を含む): 818642664

約数和(自身を除く): 418440652

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 211, 422, 844, 1477, 2954, 5908, 9677, 10339, 19354, 20678, 38708, 41356, 67739, 135478, 270956, 474173, 948346, 1896692, 2041847, 4083694, 8167388, 14292929, 28585858, 57171716, 100050503, 200101006, 400202012]

約数ペア:

[(1, 400202012), (2, 200101006), (4, 100050503), (7, 57171716), (14, 28585858), (28, 14292929), (49, 8167388), (98, 4083694), (196, 2041847), (211, 1896692), (422, 948346), (844, 474173), (1477, 270956), (2954, 135478), (5908, 67739), (9677, 41356), (10339, 38708), (19354, 20678)]