28346440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:334

約数の個数: 64

約数和(自身を含む): 66484800

約数和(自身を除く): 38138360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 107, 148, 179, 185, 214, 296, 358, 370, 428, 535, 716, 740, 856, 895, 1070, 1432, 1480, 1790, 2140, 3580, 3959, 4280, 6623, 7160, 7918, 13246, 15836, 19153, 19795, 26492, 31672, 33115, 38306, 39590, 52984, 66230, 76612, 79180, 95765, 132460, 153224, 158360, 191530, 264920, 383060, 708661, 766120, 1417322, 2834644, 3543305, 5669288, 7086610, 14173220, 28346440]

約数ペア:

[(1, 28346440), (2, 14173220), (4, 7086610), (5, 5669288), (8, 3543305), (10, 2834644), (20, 1417322), (37, 766120), (40, 708661), (74, 383060), (107, 264920), (148, 191530), (179, 158360), (185, 153224), (214, 132460), (296, 95765), (358, 79180), (370, 76612), (428, 66230), (535, 52984), (716, 39590), (740, 38306), (856, 33115), (895, 31672), (1070, 26492), (1432, 19795), (1480, 19153), (1790, 15836), (2140, 13246), (3580, 7918), (3959, 7160), (4280, 6623)]