87807020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89599}}^1$

素因数の和:89622

約数の個数: 36

約数和(自身を含む): 214502400

約数和(自身を除く): 126695380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 89599, 179198, 358396, 447995, 627193, 895990, 1254386, 1791980, 2508772, 3135965, 4390351, 6271930, 8780702, 12543860, 17561404, 21951755, 43903510, 87807020]

約数ペア:

[(1, 87807020), (2, 43903510), (4, 21951755), (5, 17561404), (7, 12543860), (10, 8780702), (14, 6271930), (20, 4390351), (28, 3135965), (35, 2508772), (49, 1791980), (70, 1254386), (98, 895990), (140, 627193), (196, 447995), (245, 358396), (490, 179198), (980, 89599)]