278364843

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{349}}^1$

素因数の和:633

約数の個数: 40

約数和(自身を含む): 428582000

約数和(自身を除く): 150217157

約数列:

[1, 3, 9, 27, 43, 81, 129, 229, 349, 387, 687, 1047, 1161, 2061, 3141, 3483, 6183, 9423, 9847, 15007, 18549, 28269, 29541, 45021, 79921, 88623, 135063, 239763, 265869, 405189, 719289, 797607, 1215567, 2157867, 3436603, 6473601, 10309809, 30929427, 92788281, 278364843]

約数ペア:

[(1, 278364843), (3, 92788281), (9, 30929427), (27, 10309809), (43, 6473601), (81, 3436603), (129, 2157867), (229, 1215567), (349, 797607), (387, 719289), (687, 405189), (1047, 265869), (1161, 239763), (2061, 135063), (3141, 88623), (3483, 79921), (6183, 45021), (9423, 29541), (9847, 28269), (15007, 18549)]