81358384

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2689}}^1$

素因数の和:2789

約数の個数: 40

約数和(自身を含む): 165445760

約数和(自身を除く): 84087376

約数列:

[1, 2, 4, 8, 16, 31, 61, 62, 122, 124, 244, 248, 488, 496, 976, 1891, 2689, 3782, 5378, 7564, 10756, 15128, 21512, 30256, 43024, 83359, 164029, 166718, 328058, 333436, 656116, 666872, 1312232, 1333744, 2624464, 5084899, 10169798, 20339596, 40679192, 81358384]

約数ペア:

[(1, 81358384), (2, 40679192), (4, 20339596), (8, 10169798), (16, 5084899), (31, 2624464), (61, 1333744), (62, 1312232), (122, 666872), (124, 656116), (244, 333436), (248, 328058), (488, 166718), (496, 164029), (976, 83359), (1891, 43024), (2689, 30256), (3782, 21512), (5378, 15128), (7564, 10756)]