178294340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{4231}}^1$

素因数の和:4297

約数の個数: 72

約数和(自身を含む): 445781952

約数和(自身を除く): 267487612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 860, 980, 1204, 1505, 2107, 3010, 4214, 4231, 6020, 8428, 8462, 10535, 16924, 21070, 21155, 29617, 42140, 42310, 59234, 84620, 118468, 148085, 181933, 207319, 296170, 363866, 414638, 592340, 727732, 829276, 909665, 1036595, 1273531, 1819330, 2073190, 2547062, 3638660, 4146380, 5094124, 6367655, 8914717, 12735310, 17829434, 25470620, 35658868, 44573585, 89147170, 178294340]

約数ペア:

[(1, 178294340), (2, 89147170), (4, 44573585), (5, 35658868), (7, 25470620), (10, 17829434), (14, 12735310), (20, 8914717), (28, 6367655), (35, 5094124), (43, 4146380), (49, 3638660), (70, 2547062), (86, 2073190), (98, 1819330), (140, 1273531), (172, 1036595), (196, 909665), (215, 829276), (245, 727732), (301, 592340), (430, 414638), (490, 363866), (602, 296170), (860, 207319), (980, 181933), (1204, 148085), (1505, 118468), (2107, 84620), (3010, 59234), (4214, 42310), (4231, 42140), (6020, 29617), (8428, 21155), (8462, 21070), (10535, 16924)]