4256840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1$

素因数の和:702

約数の個数: 64

約数和(自身を含む): 11439360

約数和(自身を除く): 7182520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 661, 805, 920, 1288, 1322, 1610, 2644, 3220, 3305, 4627, 5288, 6440, 6610, 9254, 13220, 15203, 18508, 23135, 26440, 30406, 37016, 46270, 60812, 76015, 92540, 106421, 121624, 152030, 185080, 212842, 304060, 425684, 532105, 608120, 851368, 1064210, 2128420, 4256840]

約数ペア:

[(1, 4256840), (2, 2128420), (4, 1064210), (5, 851368), (7, 608120), (8, 532105), (10, 425684), (14, 304060), (20, 212842), (23, 185080), (28, 152030), (35, 121624), (40, 106421), (46, 92540), (56, 76015), (70, 60812), (92, 46270), (115, 37016), (140, 30406), (161, 26440), (184, 23135), (230, 18508), (280, 15203), (322, 13220), (460, 9254), (644, 6610), (661, 6440), (805, 5288), (920, 4627), (1288, 3305), (1322, 3220), (1610, 2644)]