81233854

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{569}}^1$

素因数の和:637

約数の個数: 48

約数和(自身を含む): 146991600

約数和(自身を除く): 65757746

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 221, 247, 289, 323, 442, 494, 569, 578, 646, 1138, 3757, 4199, 5491, 7397, 7514, 8398, 9673, 10811, 10982, 14794, 19346, 21622, 71383, 125749, 140543, 142766, 164441, 183787, 251498, 281086, 328882, 367574, 2137733, 2389231, 3124379, 4275466, 4778462, 6248758, 40616927, 81233854]

約数ペア:

[(1, 81233854), (2, 40616927), (13, 6248758), (17, 4778462), (19, 4275466), (26, 3124379), (34, 2389231), (38, 2137733), (221, 367574), (247, 328882), (289, 281086), (323, 251498), (442, 183787), (494, 164441), (569, 142766), (578, 140543), (646, 125749), (1138, 71383), (3757, 21622), (4199, 19346), (5491, 14794), (7397, 10982), (7514, 10811), (8398, 9673)]