25890620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{911}}^1$

素因数の和:963

約数の個数: 72

約数和(自身を含む): 65499840

約数和(自身を除く): 39609220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 911, 980, 1015, 1421, 1822, 2030, 2842, 3644, 4060, 4555, 5684, 6377, 7105, 9110, 12754, 14210, 18220, 25508, 26419, 28420, 31885, 44639, 52838, 63770, 89278, 105676, 127540, 132095, 178556, 184933, 223195, 264190, 369866, 446390, 528380, 739732, 892780, 924665, 1294531, 1849330, 2589062, 3698660, 5178124, 6472655, 12945310, 25890620]

約数ペア:

[(1, 25890620), (2, 12945310), (4, 6472655), (5, 5178124), (7, 3698660), (10, 2589062), (14, 1849330), (20, 1294531), (28, 924665), (29, 892780), (35, 739732), (49, 528380), (58, 446390), (70, 369866), (98, 264190), (116, 223195), (140, 184933), (145, 178556), (196, 132095), (203, 127540), (245, 105676), (290, 89278), (406, 63770), (490, 52838), (580, 44639), (812, 31885), (911, 28420), (980, 26419), (1015, 25508), (1421, 18220), (1822, 14210), (2030, 12754), (2842, 9110), (3644, 7105), (4060, 6377), (4555, 5684)]