69781905

素因数分解:

$3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4007}}^1$

素因数の和:4067

約数の個数: 40

約数和(自身を含む): 128031552

約数和(自身を除く): 58249647

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 129, 135, 215, 387, 405, 645, 1161, 1935, 3483, 4007, 5805, 12021, 17415, 20035, 36063, 60105, 108189, 172301, 180315, 324567, 516903, 540945, 861505, 1550709, 1622835, 2584515, 4652127, 7753545, 13956381, 23260635, 69781905]

約数ペア:

[(1, 69781905), (3, 23260635), (5, 13956381), (9, 7753545), (15, 4652127), (27, 2584515), (43, 1622835), (45, 1550709), (81, 861505), (129, 540945), (135, 516903), (215, 324567), (387, 180315), (405, 172301), (645, 108189), (1161, 60105), (1935, 36063), (3483, 20035), (4007, 17415), (5805, 12021)]