161015855

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{607}}^1$

素因数の和:696

約数の個数: 64

約数和(自身を含む): 264757248

約数和(自身を除く): 103741393

約数列:

[1, 5, 7, 11, 13, 35, 53, 55, 65, 77, 91, 143, 265, 371, 385, 455, 583, 607, 689, 715, 1001, 1855, 2915, 3035, 3445, 4081, 4249, 4823, 5005, 6677, 7579, 7891, 20405, 21245, 24115, 32171, 33385, 37895, 39455, 46739, 53053, 55237, 86801, 160855, 225197, 233695, 265265, 276185, 353881, 418223, 434005, 607607, 1125985, 1769405, 2091115, 2477167, 2927561, 3038035, 4600453, 12385835, 14637805, 23002265, 32203171, 161015855]

約数ペア:

[(1, 161015855), (5, 32203171), (7, 23002265), (11, 14637805), (13, 12385835), (35, 4600453), (53, 3038035), (55, 2927561), (65, 2477167), (77, 2091115), (91, 1769405), (143, 1125985), (265, 607607), (371, 434005), (385, 418223), (455, 353881), (583, 276185), (607, 265265), (689, 233695), (715, 225197), (1001, 160855), (1855, 86801), (2915, 55237), (3035, 53053), (3445, 46739), (4081, 39455), (4249, 37895), (4823, 33385), (5005, 32171), (6677, 24115), (7579, 21245), (7891, 20405)]