398730143

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{277}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 491059200

約数和(自身を除く): 92329057

約数列:

[1, 7, 19, 79, 133, 137, 277, 553, 959, 1501, 1939, 2603, 5263, 10507, 10823, 18221, 21883, 36841, 37949, 75761, 153181, 205637, 265643, 415777, 721031, 1439459, 2910439, 2997971, 5047217, 20985797, 56961449, 398730143]

約数ペア:

[(1, 398730143), (7, 56961449), (19, 20985797), (79, 5047217), (133, 2997971), (137, 2910439), (277, 1439459), (553, 721031), (959, 415777), (1501, 265643), (1939, 205637), (2603, 153181), (5263, 75761), (10507, 37949), (10823, 36841), (18221, 21883)]