78978692

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{28657}}^1$

素因数の和:28727

約数の個数: 24

約数和(自身を含む): 151658136

約数和(自身を除く): 72679444

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 28657, 57314, 114628, 372541, 745082, 1490164, 1518821, 3037642, 6075284, 19744673, 39489346, 78978692]

約数ペア:

[(1, 78978692), (2, 39489346), (4, 19744673), (13, 6075284), (26, 3037642), (52, 1518821), (53, 1490164), (106, 745082), (212, 372541), (689, 114628), (1378, 57314), (2756, 28657)]