81665558

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{383}}^1$

素因数の和:596

約数の個数: 32

約数和(自身を含む): 135475200

約数和(自身を除く): 53809642

約数列:

[1, 2, 13, 26, 59, 118, 139, 278, 383, 766, 767, 1534, 1807, 3614, 4979, 8201, 9958, 16402, 22597, 45194, 53237, 106474, 106613, 213226, 293761, 587522, 692081, 1384162, 3140983, 6281966, 40832779, 81665558]

約数ペア:

[(1, 81665558), (2, 40832779), (13, 6281966), (26, 3140983), (59, 1384162), (118, 692081), (139, 587522), (278, 293761), (383, 213226), (766, 106613), (767, 106474), (1534, 53237), (1807, 45194), (3614, 22597), (4979, 16402), (8201, 9958)]