87818780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89611}}^1$

素因数の和:89634

約数の個数: 36

約数和(自身を含む): 214531128

約数和(自身を除く): 126712348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 89611, 179222, 358444, 448055, 627277, 896110, 1254554, 1792220, 2509108, 3136385, 4390939, 6272770, 8781878, 12545540, 17563756, 21954695, 43909390, 87818780]

約数ペア:

[(1, 87818780), (2, 43909390), (4, 21954695), (5, 17563756), (7, 12545540), (10, 8781878), (14, 6272770), (20, 4390939), (28, 3136385), (35, 2509108), (49, 1792220), (70, 1254554), (98, 896110), (140, 627277), (196, 448055), (245, 358444), (490, 179222), (980, 89611)]