161778136

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1439}}^1$

素因数の和:1528

約数の個数: 64

約数和(自身を含む): 348364800

約数和(自身を除く): 186586664

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 47, 52, 92, 94, 104, 184, 188, 299, 376, 598, 611, 1081, 1196, 1222, 1439, 2162, 2392, 2444, 2878, 4324, 4888, 5756, 8648, 11512, 14053, 18707, 28106, 33097, 37414, 56212, 66194, 67633, 74828, 112424, 132388, 135266, 149656, 264776, 270532, 430261, 541064, 860522, 879229, 1555559, 1721044, 1758458, 3111118, 3442088, 3516916, 6222236, 7033832, 12444472, 20222267, 40444534, 80889068, 161778136]

約数ペア:

[(1, 161778136), (2, 80889068), (4, 40444534), (8, 20222267), (13, 12444472), (23, 7033832), (26, 6222236), (46, 3516916), (47, 3442088), (52, 3111118), (92, 1758458), (94, 1721044), (104, 1555559), (184, 879229), (188, 860522), (299, 541064), (376, 430261), (598, 270532), (611, 264776), (1081, 149656), (1196, 135266), (1222, 132388), (1439, 112424), (2162, 74828), (2392, 67633), (2444, 66194), (2878, 56212), (4324, 37414), (4888, 33097), (5756, 28106), (8648, 18707), (11512, 14053)]