661291326

素因数分解:

$2^1\times 3^2\times {\mathrm{163}}^1\times {\mathrm{257}}^1\times {\mathrm{877}}^1$

素因数の和:1305

約数の個数: 48

約数和(自身を含む): 1448847504

約数和(自身を除く): 787556178

約数列:

[1, 2, 3, 6, 9, 18, 163, 257, 326, 489, 514, 771, 877, 978, 1467, 1542, 1754, 2313, 2631, 2934, 4626, 5262, 7893, 15786, 41891, 83782, 125673, 142951, 225389, 251346, 285902, 377019, 428853, 450778, 676167, 754038, 857706, 1286559, 1352334, 2028501, 2573118, 4057002, 36738407, 73476814, 110215221, 220430442, 330645663, 661291326]

約数ペア:

[(1, 661291326), (2, 330645663), (3, 220430442), (6, 110215221), (9, 73476814), (18, 36738407), (163, 4057002), (257, 2573118), (326, 2028501), (489, 1352334), (514, 1286559), (771, 857706), (877, 754038), (978, 676167), (1467, 450778), (1542, 428853), (1754, 377019), (2313, 285902), (2631, 251346), (2934, 225389), (4626, 142951), (5262, 125673), (7893, 83782), (15786, 41891)]