179664723

素因数分解:

$3^5\times 7^2\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:299

約数の個数: 72

約数和(自身を含む): 318689280

約数和(自身を除く): 139024557

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 79, 81, 147, 189, 191, 237, 243, 441, 553, 567, 573, 711, 1323, 1337, 1659, 1701, 1719, 2133, 3871, 3969, 4011, 4977, 5157, 6399, 9359, 11613, 11907, 12033, 14931, 15089, 15471, 19197, 28077, 34839, 36099, 44793, 45267, 46413, 84231, 104517, 105623, 108297, 134379, 135801, 252693, 313551, 316869, 324891, 407403, 739361, 758079, 940653, 950607, 1222209, 2218083, 2274237, 2851821, 3666627, 6654249, 8555463, 19962747, 25666389, 59888241, 179664723]

約数ペア:

[(1, 179664723), (3, 59888241), (7, 25666389), (9, 19962747), (21, 8555463), (27, 6654249), (49, 3666627), (63, 2851821), (79, 2274237), (81, 2218083), (147, 1222209), (189, 950607), (191, 940653), (237, 758079), (243, 739361), (441, 407403), (553, 324891), (567, 316869), (573, 313551), (711, 252693), (1323, 135801), (1337, 134379), (1659, 108297), (1701, 105623), (1719, 104517), (2133, 84231), (3871, 46413), (3969, 45267), (4011, 44793), (4977, 36099), (5157, 34839), (6399, 28077), (9359, 19197), (11613, 15471), (11907, 15089), (12033, 14931)]