164052440

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 376090560

約数和(自身を除く): 212038120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 157, 173, 302, 314, 346, 604, 628, 692, 755, 785, 865, 1208, 1256, 1384, 1510, 1570, 1730, 3020, 3140, 3460, 6040, 6280, 6920, 23707, 26123, 27161, 47414, 52246, 54322, 94828, 104492, 108644, 118535, 130615, 135805, 189656, 208984, 217288, 237070, 261230, 271610, 474140, 522460, 543220, 948280, 1044920, 1086440, 4101311, 8202622, 16405244, 20506555, 32810488, 41013110, 82026220, 164052440]

約数ペア:

[(1, 164052440), (2, 82026220), (4, 41013110), (5, 32810488), (8, 20506555), (10, 16405244), (20, 8202622), (40, 4101311), (151, 1086440), (157, 1044920), (173, 948280), (302, 543220), (314, 522460), (346, 474140), (604, 271610), (628, 261230), (692, 237070), (755, 217288), (785, 208984), (865, 189656), (1208, 135805), (1256, 130615), (1384, 118535), (1510, 108644), (1570, 104492), (1730, 94828), (3020, 54322), (3140, 52246), (3460, 47414), (6040, 27161), (6280, 26123), (6920, 23707)]