81278416

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{3727}}^1$

素因数の和:3811

約数の個数: 40

約数和(自身を含む): 166417920

約数和(自身を除く): 85139504

約数列:

[1, 2, 4, 8, 16, 29, 47, 58, 94, 116, 188, 232, 376, 464, 752, 1363, 2726, 3727, 5452, 7454, 10904, 14908, 21808, 29816, 59632, 108083, 175169, 216166, 350338, 432332, 700676, 864664, 1401352, 1729328, 2802704, 5079901, 10159802, 20319604, 40639208, 81278416]

約数ペア:

[(1, 81278416), (2, 40639208), (4, 20319604), (8, 10159802), (16, 5079901), (29, 2802704), (47, 1729328), (58, 1401352), (94, 864664), (116, 700676), (188, 432332), (232, 350338), (376, 216166), (464, 175169), (752, 108083), (1363, 59632), (2726, 29816), (3727, 21808), (5452, 14908), (7454, 10904)]