78854360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151643}}^1$

素因数の和:151667

約数の個数: 32

約数和(自身を含む): 191071440

約数和(自身を除く): 112217080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 151643, 303286, 606572, 758215, 1213144, 1516430, 1971359, 3032860, 3942718, 6065720, 7885436, 9856795, 15770872, 19713590, 39427180, 78854360]

約数ペア:

[(1, 78854360), (2, 39427180), (4, 19713590), (5, 15770872), (8, 9856795), (10, 7885436), (13, 6065720), (20, 3942718), (26, 3032860), (40, 1971359), (52, 1516430), (65, 1213144), (104, 758215), (130, 606572), (260, 303286), (520, 151643)]